The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo…
Priority LOW 31CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
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.
Why it matters now
EPSS 0.02441 84th percentileScored 2026-11-07
Fix Partial oauth2 (PyPI): 1.9rc1Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | oauth2 (PyPI) | before 1.9rc1 | 1.9rc1 | Patch available | GHSA-rv8h-p43r-4x5r |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- oauth2 (PyPI) Vendor— Affected before 1.9rc1 Fixed in 1.9rc1 Patch available GHSA-rv8h-p43r-4x5r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:urbanairship:python-oauth2:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Urbanairship |
- cpe:2.3:a:urbanairship:python-oauth2:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Urbanairship
Remediation
- Fix · GHSA-rv8h-p43r-4x5r oauth2 (PyPI) Fixed in 1.9rc1 Advisory →
Red Hat 2 advisories
- RHSA-2015:1592 Released 2015-08-12 · Red Hat rating ImportantRed Hat Satellite 6.1.1 on RHEL 6
- Red Hat Satellite 6.1 aopalliance-1.0-5.3.ep5.el6, apache-commons-codec-eap6-1.4-16.redhat_3.1.ep6.el6, apache-mime4j-0.6-4_redhat_1.ep6.el6.1 +47
- Red Hat Satellite Capsule 6.1 capsule-installer-2.3.17-1.el6_6sat, createrepo_c-0.7.4-1.el6_6sat, createrepo_c-libs-0.7.4-1.el6_6sat +47
- RHSA-2015:1591 Released 2015-08-12 · Red Hat rating ImportantRed Hat Satellite 6.1.1 on RHEL 7
- Red Hat Satellite 6.1 aether-1.13.1-13.el7, aether-api-1.13.1-13.el7, aether-connector-wagon-1.13.1-13.el7 +47
- Red Hat Satellite Capsule 6.1 capsule-installer-2.3.17-1.el7sat, createrepo_c-0.7.4-1.el7sat, createrepo_c-libs-0.7.4-1.el7sat +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenStack Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat Satellite 6.1 | Fixed | RHSA-2015:1591, RHSA-2015:1592 |
| Red Hat Satellite Capsule 6.1 | Fixed | RHSA-2015:1591, RHSA-2015:1592 |
Not affected: 1 product
- CloudForms Management Engine 5
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4347
- 2026-10-03 Alias added: GHSA-rv8h-p43r-4x5r
References
Other 10
- https://github.com/simplegeo/python-oauth2/issues/9
- [oss-security] 20130912 Re: cve requests for python-oauth2
- https://github.com/simplegeo/python-oauth2/pull/146
- https://github.com/joestump/python-oauth2/commit/82dd2cdd4954cd7b8983d5d64c0dfd9072bf4650
- https://access.redhat.com/errata/RHSA-2015:1591
- https://access.redhat.com/errata/RHSA-2015:1592
- https://access.redhat.com/security/cve/CVE-2013-4347
- https://bugzilla.redhat.com/show_bug.cgi?id=1007758
- https://github.com/joestump/python-oauth2
- https://github.com/pypa/advisory-database/tree/main/vulns/oauth2/PYSEC-2014-86.yaml
More Urbanairship Python-oauth2 vulnerabilities
- TI-2013-03807 The Server.verify_request function in SimpleGeo python-oauth2 does not check the nonce… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2013-4347 · CVE Program
- CVE-2013-4347 · NVD
- FIRST EPSS
- GHSA-rv8h-p43r-4x5r · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4347 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences