73397 : Perl libwww-perl Net::HTTPS Module SSL Certificate Common Field Name Validation Weakness
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2010-12-28

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2011-0633" target="_blank">CVE</a>)</em> : The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Uncoordinated Disclosure

Solution

Upgrade to version 6.00 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Unknown or Incomplete

References

CVE ID: 2011-0633 (see also: NVD)
Secunia Advisory ID: 44614 44768
Vendor Specific News/Changelog Entry: http://cpansearch.perl.org/src/GAAS/libwww-perl-6.00/Changes
Other Advisory URL: http://vttynotes.blogspot.com/2010/12/man-in-middle-fun-with-perl-lwp.html
http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html
Vendor Specific Advisory URL: https://hermes.opensuse.org/messages/8625448
https://hermes.opensuse.org/messages/8628099

Tools & Filters

	54920

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.3
Source: nvd.nist.gov | Generated: 2011-05-16 | Disagree?

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