CVE-2013-4347

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Summary

CVECVE-2013-4347
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-05-20 14:55:04 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe (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.

Risk And Classification

Primary CVSS: v2.0 5.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:N

Problem Types: CWE-310 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:M/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Urbanairship Python-oauth2 - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
make_nonce is not random enough · Issue #9 · joestump/python-oauth2 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
python-oauth2 CVE-2013-4347 Multiple Predictable Random Number Generator Weaknesses af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
use a better random with SystemRandom (CVE-2013-4347) by pmakowski · Pull Request #146 · joestump/python-oauth2 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
oss-security - Re: cve requests for python-oauth2 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
CVE-2013-4347 - Red Hat Customer Portal MITRE access.redhat.com
1007758 – (CVE-2013-4347) CVE-2013-4347 python-oauth2: Uses poor PRNG in nonce MITRE bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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