CVE-2004-0004
The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is trusted by OpenCA's chain directory, allowing remote attackers to spoof requests from other users.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.09% probability · 81th percentile
- CISA KEV
- Not listed
- Affected
- openca/openca
- Source
- cve@mitre.org
References
- http://marc.info/?l=bugtraq&m=107427313700554&w=2
- http://www.kb.cert.org/vuls/id/336446US Government Resource
- http://www.openca.org/news/CAN-2004-0004.txtPatch, Vendor Advisory
- http://www.osvdb.org/3615
- http://www.securityfocus.com/bid/9435Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/14847
- http://marc.info/?l=bugtraq&m=107427313700554&w=2
- http://www.kb.cert.org/vuls/id/336446US Government Resource
- http://www.openca.org/news/CAN-2004-0004.txtPatch, Vendor Advisory
- http://www.osvdb.org/3615
- http://www.securityfocus.com/bid/9435Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/14847
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.