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Fencer Vulns
critical 10.0

CVE-2005-2700 in the critical feed json

ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not prop…

published 2005-09-06 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2701

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
30.6%
EPSS 30.6% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enforce "SSLVerifyClient require" in a per-location context, which allows remote attackers to bypass intended access restrictions.

Patch / fix

  • apache http_server 2.0.55
  • apache2 Debian 14, Debian 13, Debian 12 2.0.54-5

debian advisories DEBIAN-CVE-2005-2700

  • httpd RHEL 3 2.0.46-46.3.ent
  • httpd RHEL 4 2.0.52-12.2.ent
  • mod_ssl RHEL 3 1:2.0.46-46.3.ent
  • mod_ssl RHEL 4 1:2.0.52-12.2.ent
  • httpd-manual RHEL 4 2.0.52-12.2.ent
  • httpd-suexec RHEL 4 2.0.52-12.2.ent

red hat advisories RHSA-2005:608

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-2005-2700 updated

security flaw

  • Red Hat Desktop version 3 httpd 2.0.46-46.3.ent, mod_ssl 2.0.46-46.3.ent Red Hat Enterprise Linux AS version 3 httpd 2.0.46-46.3.ent, mod_ssl 2.0.46-46.3.ent Red Hat Enterprise Linux AS version 4 httpd 2.0.52-12.2.ent, mod_ssl 2.0.52-12.2.ent, httpd-manual 2.0.52-12.2.ent, httpd-suexec 2.0.52-12.2.ent Red Hat Enterprise Linux Desktop version 4 httpd 2.0.52-12.2.ent, mod_ssl 2.0.52-12.2.ent, httpd-manual 2.0.52-12.2.ent, httpd-suexec 2.0.52-12.2.ent
    fixed: vendor fix RHSA-2005:608
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2005:773
  • Red Hat Enterprise Linux ES version 3 httpd 2.0.46-46.3.ent, mod_ssl 2.0.46-46.3.ent Red Hat Enterprise Linux ES version 4 httpd 2.0.52-12.2.ent, mod_ssl 2.0.52-12.2.ent, httpd-manual 2.0.52-12.2.ent, httpd-suexec 2.0.52-12.2.ent
    fixed: vendor fix RHSA-2005:608
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2005:773
  • Red Hat Enterprise Linux WS version 3 httpd 2.0.46-46.3.ent, mod_ssl 2.0.46-46.3.ent Red Hat Enterprise Linux WS version 4 httpd 2.0.52-12.2.ent, mod_ssl 2.0.52-12.2.ent, httpd-manual 2.0.52-12.2.ent, httpd-suexec 2.0.52-12.2.ent
    fixed: vendor fix RHSA-2005:608
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2005:773
  • Red Hat Stronghold 4
    fixed: vendor fix RHSA-2005:882
  • Red Hat Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1)
    fixed: vendor fix RHSA-2005:816

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

Exploit prediction

30.58% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

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.