What’s Vulnerable › Vulnerabilities

CVE-2011-2767

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-26 · updated 2026-06-16
• Weakness: CWE-94

Description

mod_perl 2.0 through 2.0.10 allows attackers to execute arbitrary Perl code by placing it in a user-owned .htaccess file, because (contrary to the documentation) there is no configuration option that permits Perl code for the administrator's control of HTTP request processing without also permitting unprivileged users to run Perl code in the context of the user account that runs Apache HTTP Server processes.

Affected products

• Apache Mod Perl: from 2.0.0 through 2.0.10
• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 18.10
• Debian Linux: 8.0
• Red Hat Enterprise Linux: 6.0, 6.7, 7.0, 7.3, 7.4, 7.5 (+1)
• RedHat Enterprise Linux Desktop: 6.0
• RedHat Enterprise Linux Server: 6.0
• RedHat Enterprise Linux Workstation: 6.0

References

• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00063.html
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00065.html
• http://www.securityfocus.com/bid/105195
• https://access.redhat.com/errata/RHSA-2018:2737
• https://access.redhat.com/errata/RHSA-2018:2825
• https://access.redhat.com/errata/RHSA-2018:2826
• https://bugs.debian.org/644169
• https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d%40%3Cmodperl-cvs.perl.apache.org%3E
• https://lists.debian.org/debian-lts-announce/2018/09/msg00018.html
• https://mail-archives.apache.org/mod_mbox/perl-modperl/201110.mbox/raw/%3C20111004084343.GA21290%40ktnx.net%3E
• https://usn.ubuntu.com/3825-1/
• https://usn.ubuntu.com/3825-2/

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