Vulnerability CVE-2002-0754
Published: 2002-08-12   Modified: 2012-02-12

Description:
Kerberos 5 su (k5su) in FreeBSD 4.4 and earlier relies on the getlogin system call to determine if the user running k5su is root, which could allow a root-initiated process to regain its privileges after it has dropped them.

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
KTH -> Heimdal 
Freebsd -> Heimdal 
Freebsd -> Freebsd 

 References:
http://www.securityfocus.com/bid/3919
http://www.iss.net/security_center/static/7956.php
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:07.k5su.asc
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