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Last updated: 9/14/2014 10:15:56 PM

CVE Publication rate: 25.27

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Vulnerability Workload Index: 8.29
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National Cyber Awareness System

Vulnerability Summary for CVE-2013-7373

Original release date: 04/29/2014
Last revised: 04/30/2014
Source: US-CERT/NIST

Overview

Android before 4.4 does not properly arrange for seeding of the OpenSSL PRNG, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging use of the PRNG within multiple applications.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.5 (HIGH) (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: MISC
Name: http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
External Source: CONFIRM
Name: http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
External Source: MLIST
Name: [openssl-dev] 20110415 recycled pids causes PRNG to repeat
External Source: MLIST
Name: [openssl-dev] 20110416 Re: recycled pids causes PRNG to repeat
External Source: MISC
Name: http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5

Technical Details

Vulnerability Type (View All)
  • Information Leak / Disclosure (CWE-200)