CVE-2015-2694
MIT Kerberos 5 KDC PreAuth Validation Bypass Vulnerability
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.
INFO
Published Date :
May 25, 2015, 7:59 p.m.
Last Modified :
Jan. 21, 2020, 3:46 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.9
Exploitability Score :
8.6
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2015-2694.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2015-2694 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-2694 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.13.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.13:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12.3:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12.3:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12.2:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12.2:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 07, 2016
Action Type Old Value New Value Added Reference http://www.ubuntu.com/usn/USN-2810-1 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/74824 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 15, 2016
Action Type Old Value New Value Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html -
Modified Analysis by [email protected]
May. 27, 2015
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:mit:kerberos:5-1.12:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12.2:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12.3:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.13:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.13.1:*:*:*:*:*:*:* Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:N) Changed Reference Type https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604 No Types Assigned https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604 Advisory Changed Reference Type http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160 No Types Assigned http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160 Advisory Added CWE CWE-264 -
Initial Analysis by [email protected]
May. 27, 2015
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-2694 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2015-2694
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.43 }} 0.00%
score
0.70520
percentile