Multiple Vendor mopd User Inputted Data Used as Format String Vulnerability

BID:1559

Info

Multiple Vendor mopd User Inputted Data Used as Format String Vulnerability

Bugtraq ID: 1559
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Aug 08 2000 12:00AM
Updated: Aug 08 2000 12:00AM
Credit: This vulnerability was reported to the Bugtraq mailing list on August 8, 2000 by Matt Power <[email protected]>
Vulnerable: Redhat PowerTools 6.2
- Redhat Linux 6.2 sparc
 - Redhat Linux 6.2 i386
 - Redhat Linux 6.2 alpha
 Redhat PowerTools 6.1
- Redhat Linux 6.1 i386
 Redhat PowerTools 6.0
- Redhat Linux 6.0
OpenBSD OpenBSD 2.7
OpenBSD OpenBSD 2.6
OpenBSD OpenBSD 2.5
OpenBSD OpenBSD 2.4
NetBSD NetBSD 1.4.2 x86
NetBSD NetBSD 1.4.2 SPARC
NetBSD NetBSD 1.4.2 arm32
NetBSD NetBSD 1.4.2 Alpha
NetBSD NetBSD 1.4.1 x86
NetBSD NetBSD 1.4.1 SPARC
NetBSD NetBSD 1.4.1 arm32
NetBSD NetBSD 1.4.1 Alpha
Not Vulnerable:

Discussion

Multiple Vendor mopd User Inputted Data Used as Format String Vulnerability

A buffer overflow exists in the mopd daemon, shipped with a number of popular operating systems. By supplying a filename containing the proper format strings (% strings), it is possible for a remote attacker to overwrite values on the stack. It may be possible to use this capability to execute arbitrary code on the affected machine.

To check for a vulnerable version, it is possible to look in the mopProcessDL() function, in process.c. If the pfile[] buffer is declared to be 17 bytes, it is vulnerable.

Exploit / POC

Multiple Vendor mopd User Inputted Data Used as Format String 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 inform

Solution / Fix

Multiple Vendor mopd User Inputted Data Used as Format String Vulnerability


NetBSD NetBSD 1.4.1 Alpha

NetBSD NetBSD 1.4.1 x86

NetBSD NetBSD 1.4.1 arm32

NetBSD NetBSD 1.4.1 SPARC

NetBSD NetBSD 1.4.2 x86

NetBSD NetBSD 1.4.2 arm32

NetBSD NetBSD 1.4.2 Alpha

NetBSD NetBSD 1.4.2 SPARC

OpenBSD OpenBSD 2.4

OpenBSD OpenBSD 2.6

OpenBSD OpenBSD 2.7

Redhat PowerTools 6.2

References

Multiple Vendor mopd User Inputted Data Used as Format String Vulnerability

References:
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