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Last updated: 4/18/2014

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1487

Original release date: 04/11/2011
Last revised: 02/20/2014
Source: US-CERT/NIST

Overview

The (1) lc, (2) lcfirst, (3) uc, and (4) ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/AU:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

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External Source: CONFIRM
Name: http://rt.perl.org/rt3/Public/Bug/Display.html?id=87336
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=692898
Type: Patch Information; Exploit
External Source: SUSE
Name: SUSE-SR:2011:009
External Source: MLIST
Name: [oss-security] 20110401 CVE Request -- perl -- lc(), uc() routines are laundering tainted data
Type: Patch Information; Exploit
External Source: XF
Name: perl-laundering-security-bypass(66528)
External Source: CONFIRM
Name: http://perl5.git.perl.org/perl.git/commit/539689e74a3bcb04d29e4cd9396de91a81045b99
Type: Patch Information
External Source: FEDORA
Name: FEDORA-2011-4631
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=692844
External Source: MANDRIVA
Name: MDVSA-2011:091
External Source: SECUNIA
Name: 43921
Type: Advisory
External Source: FEDORA
Name: FEDORA-2011-4610
External Source: BID
Name: 47124
External Source: MLIST
Name: [oss-security] 20110404 Re: CVE Request -- perl -- lc(), uc() routines are laundering tainted data
Type: Patch Information; Exploit
External Source: DEBIAN
Name: DSA-2265
External Source: SECUNIA
Name: 44168

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)