National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-1445 Detail

Current Description

The Crypto.Random.atfork function in PyCrypto before 2.6.1 does not properly reseed the pseudo-random number generator (PRNG) before allowing a child process to access it, which makes it easier for context-dependent attackers to obtain sensitive information by leveraging a race condition in which a child process is created and accesses the PRNG within the same rate-limit period as another process.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.debian.org/security/2013/dsa-2781
http://www.openwall.com/lists/oss-security/2013/10/17/3 Exploit Patch
https://github.com/dlitz/pycrypto/commit/19dcf7b15d61b7dc1a125a367151de40df6ef175 Exploit

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:dlitz:pycrypto:1.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:1.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:1.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:2.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:dlitz:pycrypto:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.6


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-1445
NVD Published Date:
10/26/2013
NVD Last Modified:
10/28/2013