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TITLE:
Perl IO::Socket::SSL "verify_mode" Security Bypass Security Issue

SECUNIA ADVISORY ID:
SA42508

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42508/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42508

RELEASE DATE:
2010-12-07

DISCUSS ADVISORY:
http://secunia.com/advisories/42508/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42508/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42508

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in Perl IO::Socket::SSL, which can
be exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to IO::Socket::SSL silently falling
back to the "VERIFY_NONE" verification mode if another verification
mode is defined but no valid ca_file or ca_path is provided. This can
be exploited to e.g. bypass the expected verification mode and conduct
spoofing attacks.

The security issue is reported in versions prior to 1.35.

SOLUTION:
Update to version 1.35.

PROVIDED AND/OR DISCOVERED BY:
Daniel Kahn Gillmor

ORIGINAL ADVISORY:
IO::Socket::SSL changelog:
http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.35/Changes

Debian Bug #606058:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606058

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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