VulnerabilityModified
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.
HIGH 7.5EPSS 2.83%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 2.83% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-307
- Affected
- python/py-bcrypt · fedoraproject/fedora
- Source
- secalert@redhat.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.