CVE-2015-2694
The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1)…
Does this matter?
Lower severity and a low EPSS score (2.82%). Track it; it rarely justifies an emergency change on its own.
Description
The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.
- CVSS 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
- EPSS
- 2.82% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- mit/kerberos 5
- Source
- cve@mitre.org
References
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/74824
- http://www.ubuntu.com/usn/USN-2810-1
- https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604Vendor Advisory
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/74824
- http://www.ubuntu.com/usn/USN-2810-1
- https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.