9.8
CRITICAL
CVE-2011-2767
Apache HTTP Server mod_perl Remote Code Execution Vulnerability
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.

INFO

Published Date :

Aug. 26, 2018, 4:29 p.m.

Last Modified :

Nov. 7, 2023, 2:07 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2011-2767 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
2 Redhat enterprise_linux_desktop
3 Redhat enterprise_linux_server
4 Redhat enterprise_linux_workstation
1 Canonical ubuntu_linux
1 Debian debian_linux
1 Apache mod_perl

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2011-2767 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2011-2767 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Debian GNU/Linux https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d%40%3Cmodperl-cvs.perl.apache.org%3E [No types assigned]
    Removed Reference Debian GNU/Linux https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d@%3Cmodperl-cvs.perl.apache.org%3E
  • CVE Modified by [email protected]

    Nov. 24, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00065.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 24, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00063.html [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 24, 2019

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d@%3Cmodperl-cvs.perl.apache.org%3E [No Types Assigned]
  • CPE Deprecation Remap by [email protected]

    Apr. 22, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Jan. 11, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/09/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/09/msg00018.html Mailing List, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:2737 No Types Assigned https://access.redhat.com/errata/RHSA-2018:2737 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:2825 No Types Assigned https://access.redhat.com/errata/RHSA-2018:2825 Third Party Advisory
    Changed Reference Type https://bugs.debian.org/644169 No Types Assigned https://bugs.debian.org/644169 Issue Tracking, Mailing List, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:2826 No Types Assigned https://access.redhat.com/errata/RHSA-2018:2826 Third Party Advisory
    Changed Reference Type https://mail-archives.apache.org/mod_mbox/perl-modperl/201110.mbox/raw/%3C20111004084343.GA21290%40ktnx.net%3E No Types Assigned https://mail-archives.apache.org/mod_mbox/perl-modperl/201110.mbox/raw/%3C20111004084343.GA21290%40ktnx.net%3E Mailing List, Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3825-1/ No Types Assigned https://usn.ubuntu.com/3825-1/ Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3825-2/ No Types Assigned https://usn.ubuntu.com/3825-2/ Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/105195 No Types Assigned http://www.securityfocus.com/bid/105195 Third Party Advisory, VDB Entry
    Added CWE CWE-94
    Added CPE Configuration OR *cpe:2.3:a:apache:mod_perl:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (including) 2.0.10
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:6.7:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 23, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3825-2/ [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 22, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3825-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 30, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/105195 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 28, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:2826 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:2825 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 25, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:2737 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 19, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/09/msg00018.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2011-2767 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2011-2767 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.10 }} 0.59%

score

0.89204

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability