CVE-2011-1487

Home/CVE/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

CVE

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

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.

MEDIUM · CVSS 5 EPSS 0.04202

Schedule remediation

Public exploit or PoC is available

Sigma rules2 YARA rules0

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Affected Products & Versions

perlall versions

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Public Exploits & PoCs

remotePerl 5.x - 'lc()' / 'uc()' TAINT Mode Protection Security Bypassverified
pocrt.perl.org · Display.html?id=87336rt.perl.org
pocwww.securityfocus.com · 47124www.securityfocus.com
pocbugzilla.redhat.com · show_bug.cgi?id=692898bugzilla.redhat.com

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

producthighPotential Perl Reverse Shell Execution

productmediumPerl Inline Command Execution

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · secalert@redhat.com

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Published to NVD11 Apr 2011 · 06:55 PM

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Vendor Advisories

usnUSN-1129-1

rhsaRHSA-2011:0558Low

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057891.html

http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057971.html

http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html

http://openwall.com/lists/oss-security/2011/04/01/3ExploitPatch

http://openwall.com/lists/oss-security/2011/04/04/35ExploitPatch

http://perl5.git.perl.org/perl.git/commit/539689e74a3bcb04d29e4cd9396de91a81045b99Patch

Show all 12 references

http://secunia.com/advisories/43921Vendor Advisory

http://secunia.com/advisories/44168

http://www.debian.org/security/2011/dsa-2265

http://www.mandriva.com/security/advisories?name=MDVSA-2011:091

https://bugzilla.redhat.com/show_bug.cgi?id=692844

https://exchange.xforce.ibmcloud.com/vulnerabilities/66528

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