CVE-2013-1895
HIGHCVSS 7.5/10EPSS 2.83%
Last modified
CVE-2013-1895 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the password hash to be overwritten.. EPSS estimates a 2.83% chance of exploitation in the next 30 days.
Description
The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the password hash to be overwritten.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Py-Bcrypt | < 0.3 |
| Fedoraproject | Fedora | 17 |
| Fedoraproject | Fedora | 18 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101382.htmlThird Party Advisory, Tool Signature
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101387.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2013/03/26/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/58702Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/83039Third Party Advisory, VDB Entry
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101382.htmlThird Party Advisory, Tool Signature
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101387.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2013/03/26/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/58702Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/83039Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2013-1895?
The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the password hash to be overwritten.
How severe is CVE-2013-1895?
CVE-2013-1895 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.83% probability of exploitation in the next 30 days.
How do I fix CVE-2013-1895?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2013-1895?
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Scan your code nowSource: NVD / NIST