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Fencer Vulns
high 8.1

CVE-2023-0567 json

password_verify() always returns true for some invalid hashes

published 2023-02-15 3 y ago modified 2026-09-10 59 d ago also BIT-libphp-2023-0567 , BIT-php-2023-0567 , BIT-php-min-2023-0567 , EUVD-2023-12609 , GHSA-7fj2-8x79-rjf4

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, password_verify() function may accept some invalid Blowfish hashes as valid. If such invalid hash ever ends up in the password database, it may lead to an application allowing any password for this entry as valid.

Patch / fix

  • bitnami libphp 8.0.28, 8.1.16, 8.2.3
  • bitnami php 8.0.28, 8.1.16, 8.2.3
  • bitnami php-min 8.0.28, 8.1.16, 8.2.3
  • PHP Group PHP 8.0.28, 8.1.16, 8.2.3
  • php8.2 Debian 12 8.2.4-1

debian advisories DEBIAN-CVE-2023-0567

  • php7.2 Ubuntu 18.04 LTS 7.2.24-0ubuntu0.18.04.17
  • php7.4 Ubuntu 20.04 LTS 7.4.3-4ubuntu2.18
  • php8.1 Ubuntu 22.04 LTS 8.1.2-1ubuntu2.11
  • php7.0 Ubuntu Pro 16.04 LTS 7.0.33-0ubuntu0.16.04.16+esm6

ubuntu advisories UBUNTU-CVE-2023-0567

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

  • php RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • libzip RHEL 8 1.6.1-1.module+el8.10.0+22485+a3539972
  • php-gd RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • php-cli RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • php-dba RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • php-dbg RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • php-ffi RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972
  • php-fpm RHEL 8 7.4.33-2.module+el8.10.0+22485+a3539972

red hat advisories RHSA-2024:10952RHSA-2024:0387RHSA-2023:5927RHSA-2023:5926

  • php74 SLE Software Development Kit 12 SP5, SLE Module for Web and Scripting 12 7.4.33-1.53.1
  • php7 SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS +1 more 7.2.34-150000.4.109.1
  • php7 SLE Module for Legacy 15 SP4, openSUSE Leap 15.4 7.4.33-150400.4.19.1
  • php7-fpm SLE Module for Legacy 15 SP4, openSUSE Leap 15.4 7.4.33-150400.4.19.1
  • php7-test openSUSE Leap 15.4 7.4.33-150400.4.19.1
  • php7-embed SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 7.4.33-150400.4.19.1
  • php7-fastcgi SLE Module for Legacy 15 SP4, openSUSE Leap 15.4 7.4.33-150400.4.19.1
  • apache2-mod_php7 SLE Module for Legacy 15 SP4, openSUSE Leap 15.4 7.4.33-150400.4.19.1

suse advisories SUSE-SU-2023:0515-1SUSE-SU-2023:0514-1SUSE-SU-2023:0513-1SUSE-SU-2023:0476-1

  • php8 openSUSE Tumbleweed 8.1.16-1.1

opensuse advisories openSUSE-SU-2024:12711-1

  • php AlmaLinux 8 7.4.33-2.module_el8.10.0+3935+28808425
  • libzip AlmaLinux 8 1.6.1-1.module_el8.6.0+3239+bedf0508
  • libzip AlmaLinux 8 1.6.1-1.module_el8.6.0+2750+78feabcb
  • libzip AlmaLinux 8 1.6.1-1.module_el8.10.0+3935+28808425
  • php-gd AlmaLinux 8 7.4.33-2.module_el8.10.0+3935+28808425
  • php-cli AlmaLinux 8 7.4.33-2.module_el8.10.0+3935+28808425
  • php-dba AlmaLinux 8 7.4.33-2.module_el8.10.0+3935+28808425
  • php-dbg AlmaLinux 8 7.4.33-2.module_el8.10.0+3935+28808425

almalinux advisories ALSA-2024:10952ALSA-2024:0387ALSA-2023:5926ALSA-2023:5927

  • php Rocky Linux 8 7.4.33-2.module+el8.10.0+1912+72767185
  • libzip Rocky Linux 8 1.6.1-1.module+el8.10.0+1604+6558efc7
  • php-pear Rocky Linux 8 1:1.10.13-1.module+el8.10.0+1604+6558efc7
  • php-pecl-rrd Rocky Linux 8 2.0.1-1.module+el8.10.0+1604+6558efc7
  • php-pecl-zip Rocky Linux 8 1.18.2-1.module+el8.10.0+1604+6558efc7
  • php-pecl-apcu Rocky Linux 8 5.1.18-1.module+el8.10.0+1604+6558efc7
  • php-pecl-xdebug Rocky Linux 8 2.9.5-1.module+el8.10.0+1604+6558efc7
  • php-pecl-rrd Rocky Linux 9 2.0.3-4.module+el9.6.0+32040+1f1dedb8

rocky linux advisories RLSA-2024:10952RLSA-2024:0387RLSA-2023:5926RLSA-2023:5927

  • php7 Alpine 3.15 7.4.33-r1
  • php8 Alpine 3.16 8.0.28-r0
  • php81 Alpine 3.16 8.1.17-r0
  • php81 Alpine 3.19, Alpine 3.18, Alpine 3.17 8.1.16-r0
  • php82 Alpine 3.22, Alpine 3.21, Alpine 3.20 +2 more 8.2.3-r0

alpine advisories ALPINE-CVE-2023-0567

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

  • php CBL-Mariner 2.0 8.1.16-1

azure linux advisories AZL-13740

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-2023-0567 updated cvss 5.3

php: Password_verify() always return true with some hash

  • Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more
    affected: no fix planned “Out of support scope”
  • Red Hat Software Collections rh-php73-php, rh-php73-php-gd, rh-php73-php-cli, rh-php73-php-dba, rh-php73-php-dbg, rh-php73-php-fpm, +22 more
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 8) php 8.0.30-1.module+el8.8.0+20302+42d2b711, php 7.4.33-2.module+el8.10.0+22485+a3539972, libzip 1.7.3-1.module+el8.6.0+13671+84712317, libzip 1.6.1-1.module+el8.10.0+22485+a3539972, php-gd 8.0.30-1.module+el8.8.0+20302+42d2b711, php-cli 8.0.30-1.module+el8.8.0+20302+42d2b711, +60 more
    fixed: vendor fix RHSA-2024:10952
  • Red Hat Enterprise Linux AppStream (v. 9) php 8.0.30-1.el9_2, php-gd 8.0.30-1.el9_2, php-cli 8.0.30-1.el9_2, php-dba 8.0.30-1.el9_2, php-dbg 8.0.30-1.el9_2, php-ffi 8.0.30-1.el9_2, +47 more
    fixed: vendor fix RHSA-2023:5926

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-26-027-02 updated cvss 6.2

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

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

cisa ICSA-24-046-11 updated cvss 7.7

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 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 SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/php/php-src/security/advisories/GHSA-7fj2-8x79-rjf4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADP 3.1 8.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 3.1 8.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
OSV 3.1 8.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami libphp
>=8.0.0, <8.0.28
>=8.1.0, <8.1.16
>=8.2.0, <8.2.3
8.0.28
8.1.16
8.2.3
bitnami php
>=8.0.0, <8.0.28
>=8.1.0, <8.1.16
>=8.2.0, <8.2.3
8.0.28
8.1.16
8.2.3
bitnami php-min
>=8.0.0, <8.0.28
>=8.1.0, <8.1.16
>=8.2.0, <8.2.3
8.0.28
8.1.16
8.2.3

Affected products

  • PHP Group PHP

Classification

Weakness
  • CWE-916 Use of Password Hash With Insufficient Computational Effort
Technology feeds

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.

The maintainers of php/php-src published their own advisory on GitHub. Reviewed sources take precedence over it.