PuTTY 0.48/0.49/0.53 Length memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

A vulnerability classified as critical was found in PuTTY 0.48/0.49/0.53 (Connectivity Software). Affected by this vulnerability is an unknown function of the component Length Handler. The manipulation with an unknown input 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:

Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.

The weakness was presented 12/23/2002 as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2002-1357. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Perl Module. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 48968 (SSH Malformed Packet Vulnerabilities - Cisco Systems), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38223 (Multiple Vendor SSH2 Implementation Vulnerabilities).

Applying a patch is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4570.

The vulnerability is also documented in the databases at X-Force (10868), Tenable (48968), SecurityFocus (BID 6405†), SecurityTracker (ID 1005812†) and Vulnerability Center (SBV-1559†). See VDB-19244, VDB-19245 and VDB-19246 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 48968
Nessus Name: SSH Malformed Packet Vulnerabilities - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 11195
OpenVAS Name: SSH Multiple Vulns
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
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PaloAlto IPS: 🔍
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Timelineinfo

12/16/2002 🔍
12/16/2002 +0 days 🔍
12/19/2002 +3 days 🔍
12/23/2002 +4 days 🔍
12/23/2002 +0 days 🔍
12/23/2002 +0 days 🔍
08/04/2003 +224 days 🔍
09/01/2010 +2585 days 🔍
07/31/2014 +1429 days 🔍
12/15/2024 +3790 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2002-1357 (🔍)
GCVE (CVE): GCVE-0-2002-1357
GCVE (VulDB): GCVE-100-19243

OVAL: 🔍

CERT: 🔍
X-Force: 10868
SecurityFocus: 6405 - Multiple Vendor SSH2 Implementation Incorrect Field Length Vulnerabilities
SecurityTracker: 1005812
Vulnerability Center: 1559 - [cisco-sa-20021219-ssh-packet] DoS in Multiple SSH2 Servers via Wrong Handling of Incorrect Data, High

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

Entryinfo

Created: 07/31/2014 05:18 PM
Updated: 12/15/2024 10:03 PM
Changes: 07/31/2014 05:18 PM (75), 05/11/2019 08:34 AM (13), 12/15/2024 10:03 PM (16)
Complete: 🔍
Cache ID: 18:C6F:40

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