76326 : Apple iOS Data Security X.509 Certificate MD5 Hash MitM Weakness
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Timeline

Disclosure Date
2011-10-12

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2011-3427" target="_blank">CVE</a>)</em> : The Data Security component in Apple iOS before 5 and Apple TV before 4.4 does not properly restrict use of the MD5 hash algorithm within X.509 certificates, which makes it easier for man-in-the-middle attackers to spoof servers or obtain sensitive information via a crafted certificate.

Classification

Location: Remote / Network Access
Attack Type: Cryptographic
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Public
Disclosure: Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Apple has released the iOS 5 Software Update to address this vulnerability. The vendor states this update may be downloaded and installed using iTunes.

Products

Unknown or Incomplete

References

CVE ID: 2011-3427 (see also: NVD)
Secunia Advisory ID: 46377 46415
ISS X-Force ID: 70547
Related OSVDB ID: 76319 76320 76321 76322 76323 76324 76325 76327 76328 76329 76330 76331 76332 76333 76334 76335 76336 76337 76338 76339 76340 76341 76342 76343 76344 76345 76346 76347 76348 76349 76350 76351 76352 76353 76354
Mail List Post: http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html
http://seclists.org/bugtraq/2011/Oct/72
http://seclists.org/bugtraq/2011/Oct/73
Vendor Specific Advisory URL: http://support.apple.com/kb/HT4999
http://support.apple.com/kb/HT5001/

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 2.6
Source: nvd.nist.gov | Generated: 2011-10-14 | Disagree?

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