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Fencer Vulns
medium 5.3

CVE-2024-6535 json

Skupper: potential authentication bypass to skupper console via forged cookies

published 2024-07-17 2 y ago modified 2026-06-17 4 mo ago also GHSA-w799-v85j-88pg , GO-2024-2987 , EUVD-2024-2433

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

A flaw was found in Skupper. When Skupper is initialized with the console-enabled and with console-auth set to Openshift, it configures the openshift oauth-proxy with a static cookie-secret. In certain circumstances, this may allow an attacker to bypass authentication to the Skupper console via a specially-crafted cookie.

Patch / fix

  • go github.com/skupperproject/skupper 0.0.0-20240703184342-c26bce4079ff
  • Red Hat Service Interconnect 1.4 for RHEL 9 1.4.7-1
  • Red Hat Service Interconnect 1 for RHEL 9 1.5.5-1

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-2024-6535 updated cvss 5.3

skupper: potential authentication bypass to skupper console via forged cookies

  • Red Hat Service Interconnect 1 skupper skupper
    affected: no fix available
  • Red Hat Service Interconnect 1 service-interconnect/skupper-flow-collector-rhel9 1.5.5-1, service-interconnect/skupper-service-controller-rhel9 1.5.5-1
    fixed: vendor fix RHSA-2024:4871
  • Red Hat Service Interconnect 1.4 service-interconnect/skupper-flow-collector-rhel9 1.4.7-1, service-interconnect/skupper-service-controller-rhel9 1.4.7-1
    fixed: vendor fix RHSA-2024:4865
  • Red Hat Service Interconnect 1 service-interconnect/skupper-router-rhel9 2.5.3-2, service-interconnect/skupper-operator-bundle 1.5.5-1, service-interconnect/skupper-config-sync-rhel9 1.5.5-1, service-interconnect/skupper-site-controller-rhel9 1.5.5-1, service-interconnect/skupper-controller-podman-rhel9 1.5.5-1, service-interconnect/skupper-controller-podman-container-rhel9 1.5.5-1 Red Hat Service Interconnect 1.4 service-interconnect/skupper-router-rhel9 2.4.3-5, service-interconnect/skupper-operator-bundle 1.4.7-1, service-interconnect/skupper-config-sync-rhel9 1.4.7-1, service-interconnect/skupper-site-controller-rhel9 1.4.7-1
    not affected: vulnerable code not present

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 SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/skupperproject/skupper
<0.0.0-20240703184342-c26bce4079ff
0.0.0-20240703184342-c26bce4079ff

Affected products

  • Red Hat Service Interconnect 1.4 for RHEL 9
  • Red Hat Service Interconnect 1 for RHEL 9
  • Red Hat Red Hat Service Interconnect 1

Classification

Weakness

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.