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Vulnerability Details : CVE-2003-0213

ctrlpacket.c in PoPToP PPTP server before 1.1.4-b3 allows remote attackers to cause a denial of service via a length field of 0 or 1, which causes a negative value to be fed into a read operation, leading to a buffer overflow.
Publish Date : 2003-05-12 Last Update Date : 2016-10-17
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Denial Of ServiceOverflow
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2003-0213

# Product Type Vendor Product Version Update Edition Language
1 Application Poptop Pptp Server 1.0.1 Version Details Vulnerabilities
2 Application Poptop Pptp Server 1.1.2 Version Details Vulnerabilities
3 Application Poptop Pptp Server 1.1.3 Version Details Vulnerabilities
4 Application Poptop Pptp Server 1.1.3 2002-10-09 Version Details Vulnerabilities
5 Application Poptop Pptp Server 1.1.4b1 Version Details Vulnerabilities
6 Application Poptop Pptp Server 1.1.4b2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Poptop Pptp Server 6

- References For CVE-2003-0213

http://marc.info/?l=bugtraq&m=105068728421160&w=2
BUGTRAQ 20030418 Exploit for PoPToP PPTP server
http://www.securityfocus.com/bid/7316
BID 7316 PoPToP PPTP Negative read() Argument Remote Buffer Overflow Vulnerability Release Date:2007-11-15
http://www.securityfocus.com/archive/1/317995
BUGTRAQ 20030409 PoPToP PPTP server remotely exploitable buffer overflow
http://www.securityfocus.com/archive/1/319428
BUGTRAQ 20030422 Re: Exploit for PoPToP PPTP server - Linux version
http://www.novell.com/linux/security/advisories/2003_029.html
SUSE SuSE-SA:2003:029
http://www.debian.org/security/2003/dsa-295
DEBIAN DSA-295
http://www.kb.cert.org/vuls/id/673993
CERT-VN VU#673993
http://sourceforge.net/project/shownotes.php?release_id=138437 CONFIRM
http://marc.info/?l=bugtraq&m=105154539727967&w=2
BUGTRAQ 20030428 GLSA: pptpd (200304-08)

- Metasploit Modules Related To CVE-2003-0213

Poptop Negative Read Overflow
This is an exploit for the Poptop negative read overflow. This will work against versions prior to 1.1.3-b3 and 1.1.3-20030409, but I currently do not have a good way to detect Poptop versions. The server will by default only allow 4 concurrent manager processes (what we run our code in), so you could have a max of 4 shells at once. Using the current method of exploitation, our socket will be closed before we have the ability to run code, preventing the use of Findsock.
Module type : exploit Rank : great Platforms : Linux


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