CVE-2013-4347

Severity CVSS v4.0:

Pending analysis

Type:

CWE-310 Cryptographic Issues

Publication date:

20/05/2014

Last modified:

12/04/2025

Description

The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.

Impact

Vector 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0

5.80

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:urbanairship:python-oauth2:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

http://www.openwall.com/lists/oss-security/2013/09/12/7
http://www.securityfocus.com/bid/62388
https://github.com/simplegeo/python-oauth2/issues/9
https://github.com/simplegeo/python-oauth2/pull/146
http://www.openwall.com/lists/oss-security/2013/09/12/7
http://www.securityfocus.com/bid/62388
https://github.com/simplegeo/python-oauth2/issues/9
https://github.com/simplegeo/python-oauth2/pull/146