3293 : PoPToP PPTP ctrlpacket.c Negative Read Remote Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
10	1413	over 8 years ago	about 1 year ago	8 times	90%

Timeline

Disclosure Date	Exploit Publish Date
2003-04-09	2003-04-18

Description

The PoPToP PPTP Server contains a flaw that may allow a malicious user to execute arbitrary code. The issue is triggered when the server receives a malicious packet with the length field to set either zero or one. This causes a read operation to use a negative value, allowing sensitive memory regions to be overwritten with user-supplied data. It is possible that the flaw may allow arbitrary code execution on the Linux platform, resulting in a loss of integrity or availability.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: OSVDB Verified, Vendor Verified

Solution

Upgrade to at least version 1.1.4-b3 for users of the 1.1.4 tree and version1.1.3-20030409 for users of the 1.1.3 tree. An upgrade is required as there are no known workarounds.

Products

PoPToP	PPTP Server	1.0.1
		1.1.2
		1.1.3
		1.1.4

References

Milw0rm: 16 19
Exploit Database: 16 19
CVE ID: 2003-0213 (see also: NVD)
Metasploit ID: 3293
CERT VU: 673993
Bugtraq ID: 7316
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2003-04/0144.html
http://marc.theaimsgroup.com/?l=bugtraq&m=105068728421160&w=2
http://marc.theaimsgroup.com/?l=bugtraq&m=105154539727967&w=2
Generic Exploit URL: http://packetstorm.linuxsecurity.com/0304-exploits/poptop-sane.c
Vendor Specific News/Changelog Entry: http://sourceforge.net/project/shownotes.php?release_id=138437
Other Advisory URL: http://www.debian.org/security/2003/dsa-295
http://www.novell.com/linux/security/advisories/2003_029.html
Vendor URL: http://www.poptop.org/

Tools & Filters

	11540 15132
Snort	3664

Credit

Timo Sirainen - tssiki.fi -

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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