THREATPORT/VULNERABILITY/CVE-2011-2767
CRITICAL SEVERITY

CVE-2011-2767

Mod Perl vulnerability

CVSS
9.8
EPSS
8.9%
EPSS pct
95th
Exploited
No known
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 vendor
Apache
Affected product
Mod Perl
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-08-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2011-2767

  • Confirm whether Apache Mod Perl is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-2767.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-2767

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-2767 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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