Sudo Private File Existance Information Leakage Vulnerability
BID:321
Info
Sudo Private File Existance Information Leakage Vulnerability
| Bugtraq ID: | 321 |
| Class: | Unknown |
| CVE: |
CVE-1999-1496 |
| Remote: | No |
| Local: | Yes |
| Published: | Jun 08 1999 12:00AM |
| Updated: | Jul 11 2009 12:16AM |
| Credit: | This vulnerability was published in the BUGTRAQ mailing list by Bencsath Boldizsar <[email protected]>. |
| Vulnerable: |
Todd Miller Sudo 1.5.6 Redhat Linux 6.0 Debian Linux 2.1 |
| Not Vulnerable: | |
Discussion
Sudo Private File Existance Information Leakage Vulnerability
A vulnerability in Sudo allows local malicious users to determine whether specific files under unreadable directories exist.
Sudo is a utility that allows the execution of preconfigured commands as root by authorized users after being authenticated. When sudo is executed with a filename as an argument of a file that exists under a directory non-readable by the user the error message is "<user> is not in the sudoers file. This incident will be reported.". if the file does not exists under the non-readable directory by the user the error is "sudo: <the filename>: No such file or directory". This allow a local malicious user if the filename exists or not.
This is the result of sudo checking for the file existance as root before it checks the sudoers list of people allowed to execute sudo.
This is Debian BugID 39255.
A vulnerability in Sudo allows local malicious users to determine whether specific files under unreadable directories exist.
Sudo is a utility that allows the execution of preconfigured commands as root by authorized users after being authenticated. When sudo is executed with a filename as an argument of a file that exists under a directory non-readable by the user the error message is "<user> is not in the sudoers file. This incident will be reported.". if the file does not exists under the non-readable directory by the user the error is "sudo: <the filename>: No such file or directory". This allow a local malicious user if the filename exists or not.
This is the result of sudo checking for the file existance as root before it checks the sudoers list of people allowed to execute sudo.
This is Debian BugID 39255.
Exploit / POC
Sudo Private File Existance Information Leakage Vulnerability
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
Solution / Fix
Sudo Private File Existance Information Leakage Vulnerability
Solution:
Currently the SecurityFocus staff are not aware of any vendor supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
Solution:
Currently the SecurityFocus staff are not aware of any vendor supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
References
Sudo Private File Existance Information Leakage Vulnerability
References:
References: