CVE-2008-0555

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-04-04 · updated 2026-06-16
Weakness: CWE-20

Description

The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly handle (1) '/' and (2) '=' characters in a Distinguished Name (DN) in a client certificate, which might allow remote attackers to bypass authentication via a crafted DN that triggers overwriting of environment variables.

Affected products

Apache-Ssl: 1.3.34_1.57

References

http://secunia.com/advisories/29644
http://securityreason.com/securityalert/3797
http://www.apache-ssl.org/advisory-cve-2008-0555.txt
http://www.cynops.de/advisories/CVE-2008-0555.txt
http://www.klink.name/security/aklink-sa-2008-005-apache-ssl.txt
http://www.securityfocus.com/archive/1/490386/100/0/threaded
http://www.securityfocus.com/bid/28576
http://www.securitytracker.com/id?1019784
http://www.vupen.com/english/advisories/2008/1079/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/41618
http://secunia.com/advisories/29644
http://securityreason.com/securityalert/3797

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