OS/400 User Account Name Disclosure Vulnerability
BID:4059
Info
OS/400 User Account Name Disclosure Vulnerability
| Bugtraq ID: | 4059 |
| Class: | Configuration Error |
| CVE: | |
| Remote: | No |
| Local: | Yes |
| Published: | Feb 07 2002 12:00AM |
| Updated: | Feb 07 2002 12:00AM |
| Credit: | Reported by 'ken'@FTU <[email protected]>. |
| Vulnerable: |
IBM OS/400 V5R1 IBM OS/400 V4R5 IBM OS/400 V4R4 IBM OS/400 V4R3 IBM OS/400 V4R2 |
| Not Vulnerable: | |
Discussion
OS/400 User Account Name Disclosure Vulnerability
AS/400 is a midrange computer platform developed by IBM. It is designed to be highly reliable and efficient, and uses the OS/400 operating system.
An information disclosure vulnerability has been reported to exist in OS/400 systems. An authenticated user may be able to obtain a list of all valid user accounts. The user must be running a 5250 emulator.
The user may, after authentication, access the 'System Request' menu and obtain a list of all object names of type USRPRF. The 'System Request' feature is installed by default.
This information may be useful in attempting further, intelligent attacks against the vulnerable server.
AS/400 is a midrange computer platform developed by IBM. It is designed to be highly reliable and efficient, and uses the OS/400 operating system.
An information disclosure vulnerability has been reported to exist in OS/400 systems. An authenticated user may be able to obtain a list of all valid user accounts. The user must be running a 5250 emulator.
The user may, after authentication, access the 'System Request' menu and obtain a list of all object names of type USRPRF. The 'System Request' feature is installed by default.
This information may be useful in attempting further, intelligent attacks against the vulnerable server.
Exploit / POC
OS/400 User Account Name Disclosure Vulnerability
The following directions have been provided by "'ken'@FTU" <[email protected]>:
Sign-on to AS/400
Issue system request (Shift + Esc key)
Hit enter
Choose option 3, display current job
Choose option 13, display library list
Choose option 5 next to library QSYS
Scroll down to view names of all objects of type *USRPRF (user profile)
The following directions have been provided by "'ken'@FTU" <[email protected]>:
Sign-on to AS/400
Issue system request (Shift + Esc key)
Hit enter
Choose option 3, display current job
Choose option 13, display library list
Choose option 5 next to library QSYS
Scroll down to view names of all objects of type *USRPRF (user profile)
Solution / Fix
OS/400 User Account Name Disclosure 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] <mailto:[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] <mailto:[email protected]>.
References
OS/400 User Account Name Disclosure Vulnerability
References:
References:
- iSeries Product Homepage (IBM)
- Security Patrol - MCPressOnline (John Earl