PoPToP PPTP Server up to 1.1.4-b2 ctrlpacket.c length memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in PoPToP PPTP Server up to 1.1.4-b2. This impacts an unknown function of the file ctrlpacket.c of the component PPTP Server. This manipulation of the argument length with the input 0 causes memory corruption. This vulnerability is registered as CVE-2003-0213. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in PoPToP PPTP Server up to 1.1.4-b2 and classified as critical. Affected by this vulnerability is some unknown processing of the file ctrlpacket.c of the component PPTP Server. The manipulation of the argument length with the input value 0 leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published 04/09/2003 by Timo Sirainen as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is known as CVE-2003-0213 since 04/22/2003. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C and been published 2 weeks after the advisory. It is possible to download the exploit at packetstorm.linuxsecurity.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 15132 (Debian DSA-295-1 : pptpd - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38189 (PoPToP PPTP Negative read() Argument Remote Buffer Overflow Vulnerability).

Upgrading to version 1.1.4-b3 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 3664. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3467.

The vulnerability is also documented in the databases at X-Force (11756), Exploit-DB (16), Tenable (15132), SecurityFocus (BID 7316†) and OSVDB (3293†). Similar entry is available at VDB-21373. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15132
Nessus Name: Debian DSA-295-1 : pptpd - buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53369
OpenVAS Name: Debian Security Advisory DSA 295-1 (pptpd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: poptop_negative_read.rb
MetaSploit Name: Poptop Negative Read Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: PPTP Server 1.1.4-b3

Snort ID: 3664
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

04/09/2003 🔍
04/09/2003 +0 days 🔍
04/18/2003 +9 days 🔍
04/22/2003 +3 days 🔍
04/30/2003 +8 days 🔍
05/12/2003 +12 days 🔍
05/12/2003 +0 days 🔍
08/21/2003 +101 days 🔍
01/05/2004 +137 days 🔍
09/29/2004 +267 days 🔍
08/11/2014 +3603 days 🔍
08/23/2025 +4030 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Timo Sirainen
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0213 (🔍)
GCVE (CVE): GCVE-0-2003-0213
GCVE (VulDB): GCVE-100-20425
CERT: 🔍
X-Force: 11756
SecurityFocus: 7316 - PoPToP PPTP Negative read() Argument Remote Buffer Overflow Vulnerability
OSVDB: 3293 - PoPToP PPTP ctrlpacket.c Negative Read Remote Overflow
Vulnerability Center: 1752 - Buffer Overflow in PoPToP PPTP Server< 1.1.4-b3, High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/11/2014 23:48
Updated: 08/23/2025 06:21
Changes: 08/11/2014 23:48 (96), 05/11/2019 18:44 (5), 10/28/2024 22:08 (17), 08/23/2025 06:21 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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