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Fencer Vulns
medium 5.9

CVE-2023-48795 json

Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

published 2023-12-18 2 y ago modified 2026-10-15 25 d ago also EUVD-2023-3093 , GHSA-45x7-px36-x8w8 , GO-2023-2402 , JLSEC-2025-95 , PYSEC-2026-1758

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
93.5%
EPSS 93.5% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known, plus a Nuclei check

Summary

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.

Patch / fix

  • crates.io russh 0.40.2
  • go golang.org/x/crypto 0.0.0-20231218163308-9d2ee975ef9f, 0.17.0
  • pypi paramiko 3.4.0
  • julia LibSSH2_jll 1.11.3+0
  • julia OpenSSH_jll 9.9.1+0
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • putty Debian 12 0.78-2+deb12u1
  • putty Debian 14, Debian 13 0.80-1
  • erlang Debian 12 1:25.2.3+dfsg-1+deb12u1
  • erlang Debian 14, Debian 13 1:25.3.2.8+dfsg-1
  • libssh Debian 12 0.10.6-0+deb12u1
  • libssh Debian 14, Debian 13 0.10.6-1
  • libssh2 Debian 14, Debian 13 1.11.0-4
  • openssh Debian 12 1:9.2p1-2+deb12u2

debian advisories DEBIAN-CVE-2023-48795

  • libssh Ubuntu 20.04 LTS 0.9.3-2ubuntu2.4
  • libssh Ubuntu 22.04 LTS 0.9.6-2ubuntu0.22.04.2
  • openssh Ubuntu 20.04 LTS 1:8.2p1-4ubuntu0.10
  • openssh Ubuntu 22.04 LTS 1:8.9p1-3ubuntu0.5
  • openssh Ubuntu 24.04 LTS 1:9.6p1-3ubuntu1
  • dropbear Ubuntu 22.04 LTS 2020.81-5ubuntu0.1
  • paramiko Ubuntu 20.04 LTS 2.6.0-2ubuntu0.3
  • paramiko Ubuntu 22.04 LTS 2.9.3-0ubuntu1.2

ubuntu advisories UBUNTU-CVE-2023-48795

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ceph ceph storage 8.1 2:19.2.1-423.el9cp
  • cephadm ceph storage 8.1 2:19.2.1-423.el9cp
  • librbd1 ceph storage 8.1 2:19.2.1-423.el9cp
  • librgw2 ceph storage 8.1 2:19.2.1-423.el9cp
  • rbd-nbd ceph storage 8.1 2:19.2.1-423.el9cp
  • ceph-mib ceph storage 8.1 2:19.2.1-423.el9cp
  • ceph-base ceph storage 8.1 2:19.2.1-423.el9cp
  • ceph-fuse ceph storage 8.1 2:19.2.1-423.el9cp

red hat advisories RHSA-2026:79101RHSA-2025:4664RHSA-2024:2988RHSA-2024:4597RHSA-2024:3918RHSA-2024:3636

  • openssh Linux Micro 6.0 9.6p1-2.1
  • etcd openSUSE Leap 15.6, openSUSE Leap 15.5 3.5.12-150000.7.6.1
  • jsch-agent-proxy openSUSE Leap 15.5 0.0.9-150200.3.7.1
  • trilead-ssh2 openSUSE Leap 15.5 217.293.v56de4d4d3515-150200.3.7.1
  • libssh2_org SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +19 more 1.11.0-150000.4.25.1
  • libssh2_org SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.11.0-29.12.1
  • libssh SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 0.9.8-3.12.2
  • libssh SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +6 more 0.9.8-150200.13.3.1

suse advisories SUSE-SU-2025:20009-1SUSE-SU-2024:3656-1SUSE-SU-2024:0974-1SUSE-SU-2024:0972-1SUSE-SU-2024:0558-1SUSE-SU-2024:0543-1

  • python-paramiko openSUSE Tumbleweed 5.0.0-1.2
  • python-asyncssh openSUSE Tumbleweed 2.24.0-1.1
  • cheat openSUSE Leap 16.0 4.4.2-bp160.2.1
  • erlang27 openSUSE Tumbleweed 27.1.3-1.1
  • cheat openSUSE Tumbleweed 4.4.2-2.1
  • etcd Package Hub 15 SP6, openSUSE Leap 15.6 3.5.12-bp156.4.3.1
  • python-asyncssh openSUSE Tumbleweed 2.14.2-1.1
  • openssh openSUSE Tumbleweed 9.3p2-5.1

opensuse advisories openSUSE-SU-2026:12025-1openSUSE-SU-2026:11851-1openSUSE-SU-2025:20177-1openSUSE-SU-2025:15740-1openSUSE-SU-2025:15487-1openSUSE-SU-2025:0003-1

  • openssh AlmaLinux 9 8.7p1-34.el9_3.3
  • openssh-keycat AlmaLinux 9 8.7p1-34.el9_3.3
  • openssh-server AlmaLinux 9 8.7p1-34.el9_3.3
  • openssh-askpass AlmaLinux 9 8.7p1-34.el9_3.3
  • openssh-clients AlmaLinux 9 8.7p1-34.el9_3.3
  • pam_ssh_agent_auth AlmaLinux 9 0.10.4-5.34.el9_3.3
  • buildah AlmaLinux 9 1:1.31.4-1.el9_3
  • buildah-tests AlmaLinux 9 1:1.31.4-1.el9_3

almalinux advisories ALSA-2024:1130ALSA-2024:1150ALSA-2024:0628ALSA-2024:0606

  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1815+5fe7415e
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1825+623b0c20
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1843+6892ab28
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1872+2e18eb19
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1874+ce489889
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1880+8e896d1b
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1896+b18fa106
  • crun Rocky Linux 8 1.14.3-2.module+el8.10.0+1948+4b5cd4a9

rocky linux advisories RLSA-2024:2988RLSA-2024:0606RLSA-2024:0628

  • k3s Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 1.29.3.1-r0
  • doctl Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 1.102.0-r0
  • gitea Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 1.21.3-r0
  • pijul Alpine 3.19 1.0.0_beta8-r0
  • pijul Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 1.0.0_beta8-r1
  • putty Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 0.80-r0
  • erlang Alpine 3.21, Alpine 3.20, Alpine 3.19 26.2.1-r0
  • libssh Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 0.10.6-r0

alpine advisories ALPINE-CVE-2023-48795

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • cert-manager CBL-Mariner 2.0 1.11.2-7
  • erlang CBL-Mariner 2.0 25.2-1
  • libssh CBL-Mariner 2.0, Azure Linux 3.0 0.10.6-1
  • libssh2 CBL-Mariner 2.0 1.9.0-4
  • nmap CBL-Mariner 2.0, Azure Linux 3.0 7.93-2
  • openssh CBL-Mariner 2.0 8.9p1-4
  • kubernetes CBL-Mariner 2.0 1.28.4-4
  • kubevirt CBL-Mariner 2.0 0.59.0-27

azure linux advisories AZL-32195AZL-32196AZL-32200AZL-32201AZL-32202AZL-32204

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-48795 updated cvss 5.9

ssh: Prefix truncation attack on Binary Packet Protocol (BPP)

  • Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-velero-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Developer Tools and Services odo
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Pipelines openshift-pipelines-client
    affected: workaround, no fix available
  • Red Hat Advanced Cluster Security 3 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-scanner-rhel8
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8
    affected: workaround, no fix available
  • Red Hat build of Quarkus sshd-core
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Ceph Storage 6 python-asyncssh 2.9.0-5.el9cp Red Hat Ceph Storage 9 python-asyncssh 2.9.0-5.el9cp
    affected: workaround, no fix available
  • Red Hat Enterprise Linux 6 libssh2, openssh, openssh-ldap, trilead-ssh2, openssh-server, openssh-askpass, +4 more Red Hat Enterprise Linux 7 libssh, libssh2, openssh, openssh-cavs, openssh-ldap, openssh-keycat, +6 more
    affected: workaround, no fix planned “Out of support scope”
show 29 more
  • Red Hat Enterprise Linux 8 buildah, buildah-tests
    affected: workaround, no fix available
  • Red Hat OpenShift Container Platform 3.11 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +15 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift, openshift-clients, openshift-kubelet, openshift-hyperkube, openshift4/ose-tests, openshift4/ose-console, +10 more
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift Dev Spaces devspaces/traefik-rhel8, devspaces/devspaces-rhel8-operator
    affected: workaround, no fix available
  • Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/gitops-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Virtualization 4 kubevirt, container-native-virtualization/kubevirt-dpdk-checkup-rhel9, container-native-virtualization/kubevirt-realtime-checkup-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenStack Platform 16.1 erlang-ssl, erlang-asn1, erlang-erts, erlang-hipe, erlang-sasl, erlang-snmp, +17 more Red Hat OpenStack Platform 16.2 erlang, erlang-ssl, erlang-asn1, erlang-erts, erlang-hipe, erlang-sasl, +18 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 18.0 erlang, python-paramiko
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Process Automation 7 apache-sshd
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Quay 3 quay/quay-builder-rhel8
    affected: workaround, no fix available
  • Red Hat Storage 3 heketi, heketi-client, python-heketi
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Virtualization 4 python-paramiko, python3-paramiko
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Builds for Red Hat OpenShift 1.0 openshift-builds/openshift-builds-waiters-rhel8 v1.0.1-4, openshift-builds/openshift-builds-webhook-rhel8 v1.0.1-4, openshift-builds/openshift-builds-rhel8-operator v1.0.1-6, openshift-builds/openshift-builds-controller-rhel8 v1.0.1-4, openshift-builds/openshift-builds-git-cloner-rhel8 v1.0.1-4, openshift-builds/openshift-builds-operator-bundle v1.0.1-11, +2 more
    fixed: vendor fix RHSA-2024:1557
  • Red Hat CNV 4.15 for RHEL 9 container-native-virtualization/cluster-network-addons-operator-rhel9 v4.15.3-7
    fixed: vendor fix RHSA-2024:4662
  • Red Hat EAP 8.0.1
    fixed: vendor fix RHSA-2024:1194
  • Red Hat OpenShift API for Data Protection 1.3 oadp/oadp-velero-rhel9 1.3.1-16
    fixed: vendor fix RHSA-2024:1859
  • Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins 2.440.3.1716445200-3.el8, jenkins-2-plugins 4.12.1716445211-1.el8
    fixed: vendor fix RHSA-2024:3635
  • Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins 2.440.3.1716445150-3.el8, jenkins-2-plugins 4.13.1716445207-1.el8
    fixed: vendor fix RHSA-2024:3636
  • Red Hat OpenShift Developer Tools and Services for OCP 4.14 jenkins 2.440.3.1716387933-3.el8, jenkins-2-plugins 4.14.1716388016-1.el8
    fixed: vendor fix RHSA-2024:3634
  • Red Hat OpenShift Developer Tools and Services for OCP 4.15 jenkins 2.440.3.1718879390-3.el8, jenkins-2-plugins 4.15.1718879538-1.el8
    fixed: vendor fix RHSA-2024:4597
  • Red Hat Ceph Storage 7.1 Tools liboath 2.6.12-1.el8cp, liboath 2.6.12-1.el9cp, oath-toolkit 2.6.12-1.el8cp, oath-toolkit 2.6.12-1.el9cp
    fixed: vendor fix RHSA-2025:4664
  • Red Hat Ceph Storage 8.1 rhceph/rhceph-8-rhel9 1791176990
    fixed: vendor fix RHSA-2026:79243
  • Red Hat Ceph Storage 8.1 Tools ceph 19.2.1-423.el9cp, cephadm 19.2.1-423.el9cp, librbd1 19.2.1-423.el9cp, librgw2 19.2.1-423.el9cp, rbd-nbd 19.2.1-423.el9cp, ceph-mib 19.2.1-423.el9cp, +17 more
    fixed: vendor fix RHSA-2026:79101
  • Red Hat Enterprise Linux AppStream (v. 8) openssh-askpass 8.0p1-19.el8_9.2, crit 3.18-4.module+el8.9.0+20326+387084d0, criu 3.18-4.module+el8.9.0+20326+387084d0, crun 1.14.3-2.module+el8.10.0+21340+c6c7475a, runc 1.1.12-1.module+el8.10.0+21251+62b7388c, udica 0.2.6-20.module+el8.9.0+20326+387084d0, +28 more
    fixed: vendor fix RHSA-2024:2988
  • Red Hat Enterprise Linux AppStream (v. 9) podman 4.6.1-8.el9_3, buildah 1.31.4-1.el9_3, podman-tests 4.6.1-8.el9_3, podman-docker 4.6.1-8.el9_3, podman-remote 4.6.1-8.el9_3, buildah-tests 1.31.4-1.el9_3, +4 more
    fixed: vendor fix RHSA-2024:1150
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) openssh-askpass 8.0p1-15.el8_6.3
    fixed: vendor fix RHSA-2024:0538
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) openssh-askpass 8.0p1-19.el8_8.2
    fixed: vendor fix RHSA-2024:0625
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) openssh-askpass 8.7p1-30.el9_2.3, pam_ssh_agent_auth 0.10.4-5.30.el9_2.3
    fixed: vendor fix RHSA-2024:0499
  • Red Hat Enterprise Linux BaseOS (v. 8) libssh 0.9.6-13.el8_9, openssh 8.0p1-19.el8_9.2, libssh-config 0.9.6-13.el8_9, openssh-cavs 8.0p1-19.el8_9.2, openssh-ldap 8.0p1-19.el8_9.2, openssh-keycat 8.0p1-19.el8_9.2, +3 more
    fixed: vendor fix RHSA-2024:0628

22 more fixed, 34 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-162-05 updated cvss 5.9

Siemens SIMATIC S7-1500 CPU family

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.5
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-24-193-11 updated cvss 5.9

Siemens RUGGEDCOM APE 1808

  • Siemens RUGGEDCOM APE1808
    affected: vendor fix, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-044-09 updated cvss 5.9

Siemens SCALANCE W700 IEEE 802.11ax

  • Siemens SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) <V3.0.0 Siemens SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) <V3.0.0 Siemens SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) <V3.0.0 Siemens SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) <V3.0.0 Siemens SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) <V3.0.0
    +13 more products
    Siemens SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) <V3.0.0 Siemens SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) <V3.0.0 Siemens SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) <V3.0.0 Siemens SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) <V3.0.0 Siemens SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) <V3.0.0 Siemens SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) <V3.0.0
    affected: fixed in V3.0.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-105-08 updated cvss 5.9

ABB M2M Gateway

  • ABB M2M Gateway >=4.1.2, <=5.0.3, >=5.0.1, <=5.0.3
    affected: mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-23-166-11 updated cvss 5.9

Siemens SIMATIC S7-1500 TM MFP Linux Kernel

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

93.55% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template OpenSSH Terrapin Attack - Detection nuclei detection template
  • terrapin-attack.com https://www.terrapin-attack.com referenced PoC, tagged "exploit" by a source, unverified
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2023-48795-detect-openssh-vulnerabilit referenced PoC, tagged "exploit" by a source, unverified
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2023-48795-mitigate-openssh-vulnerability referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
crates.io russh
<0.40.2
0.40.2
go golang.org/x/crypto
>=0.1.0, <0.17.0
<0.0.0-20231218163308-9d2ee975ef9f
<0.17.0
0.17.0
0.0.0-20231218163308-9d2ee975ef9f
pypi paramiko
>=2.5.0, <3.4.0
3.4.0
julia LibSSH2_jll
<1.11.3+0
1.11.3+0
julia OpenSSH_jll
<9.9.1+0
9.9.1+0

Affected products

  • Siemens RUGGEDCOM APE1808
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-354 Improper Validation of Integrity Check Value
  • CWE-345 Insufficient Verification of Data Authenticity

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.