DGen Emulator Symbolic Link Vulnerability

BID:10855

Info

DGen Emulator Symbolic Link Vulnerability

Bugtraq ID: 10855
Class: Design Error
CVE: CVE-2004-0770
Remote: No
Local: Yes
Published: Aug 04 2004 12:00AM
Updated: Jul 12 2009 06:16AM
Credit: Discovery of this issue is credited to Joey Hess.
Vulnerable: DGen Emulator 1.23
DGen Emulator 1.22
DGen Emulator 1.21
DGen Emulator 1.20 a
DGen Emulator 1.20
DGen Emulator 1.18
DGen Emulator 1.17
DGen Emulator 1.16
DGen Emulator 1.15
Debian Linux 3.0 sparc
Debian Linux 3.0 s/390
Debian Linux 3.0 ppc
Debian Linux 3.0 mipsel
Debian Linux 3.0 mips
Debian Linux 3.0 m68k
Debian Linux 3.0 ia-64
Debian Linux 3.0 ia-32
Debian Linux 3.0 hppa
Debian Linux 3.0 arm
Debian Linux 3.0 alpha
Debian Linux 3.0
Not Vulnerable:

Discussion

DGen Emulator Symbolic Link Vulnerability

DGen is reportedly affected by a symbolic link vulnerability. This issue is due to a design error that fails to properly verify files prior to writing to them.

Successful exploitation of this issue will allow a local attacker to cause the affected application to overwrite arbitrary files with the privileges of the user that invoked the affected application. Reportedly this issue could be leveraged to facilitate privilege escalation.

Exploit / POC

DGen Emulator Symbolic Link Vulnerability

No exploit is required to leverage this issue.

Solution / Fix

DGen Emulator Symbolic Link Vulnerability

Solution:
Debian GNU/Linux has released fixed packages. Users of affected packages are urged to utilize Debian's package management software to install version 1.23-6 or later of 'dgen'.

Currently we 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

DGen Emulator Symbolic Link Vulnerability

References:

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