National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2007-3149 Detail

Description

sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."

Source:  MITRE
Description Last Modified:  06/11/2007

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Provides administrator access
Allows unauthorized disclosure of information
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (06/11/2007)

Not vulnerable. Versions of sudo package shipped with Red Hat Enterprise Linux versions 2.1, 3, 4 and 5 are linked with PAM support and never use libkrb5 authentication.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://www.securityfocus.com/archive/1/470739/100/0/threaded
http://www.securityfocus.com/archive/1/470752/100/0/threaded
http://www.securityfocus.com/archive/1/470774/100/0/threaded
http://www.securityfocus.com/bid/24368
http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2007-3149
NVD Published Date:
06/11/2007
NVD Last Modified:
10/16/2018