CVE-2013-4347: urbanairship python-oauth2 Cryptographic Issues
CVSS: 5.8v2.0MediumModified
AliasesMGASA-2013-0314GHSA-rv8h-p43r-4x5rPYSEC-2014-86
Published 20-05-2014Last modified 06-08-2024
Vulnerability summary
CVE-2013-4347 is a medium (CVSS 5.8) Cryptographic Issues vulnerability in urbanairship python-oauth2. EPSS estimates a 2.45% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities.
CVSS score
5.8/10
010
Medium · v2.0 (NVD)EPSS score
2.45%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 20-05-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 3 versionsMedium 6.3Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NSourcesSingle source
Low 3.7Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:NSourcesSingle source
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
2.45%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.45% on 19-09-2026
19-09-202619-10-2026
EPSS score2.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mageia2 products
- python-oauth2< 1.5.170-1.3.mga2
- python-oauth2< 1.5.170-2.3.mga3
PyPI1 product
- oauth2< 1.9rc1
Urbanairship1 product
3 vendors · 4 products
