PuTTY up to 0.55 ssh2_rdpkt SSH2_MSG_DEBUG memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in PuTTY up to 0.55. The affected element is the function ssh2_rdpkt. Executing a manipulation of the argument SSH2_MSG_DEBUG can lead to memory corruption. This vulnerability is tracked as CVE-2004-1008. The attack can be launched remotely. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in PuTTY up to 0.55 (Connectivity Software). It has been declared as critical. This vulnerability affects the function ssh2_rdpkt. The manipulation of the argument SSH2_MSG_DEBUG 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. CVE summarizes:

Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2_MSG_DEBUG packet with a modified stringlen parameter, which leads to a buffer overflow.

The bug was discovered 10/27/2004. The weakness was disclosed 10/27/2004 with iDEFENSE (Website). The advisory is shared for download at idefense.com. This vulnerability was named CVE-2004-1008 since 11/03/2004. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a exploit are known.

It is possible to download the exploit at idefense.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 15581 (GLSA-200410-29 : PuTTY: Pre-authentication buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at chiark.greenend.org.uk. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (17886), Tenable (15581), SecurityFocus (BID 11549†), OSVDB (11165†) and Secunia (SA17214†). Additional details are provided at securityfocus.com. The entry VDB-958 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 15581
Nessus Name: GLSA-200410-29 : PuTTY: Pre-authentication buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 52317
OpenVAS Name: FreeBSD Ports: putty
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: chiark.greenend.org.uk

Timelineinfo

10/27/2004 🔍
10/27/2004 +0 days 🔍
10/27/2004 +0 days 🔍
10/27/2004 +0 days 🔍
10/27/2004 +0 days 🔍
10/28/2004 +0 days 🔍
11/01/2004 +4 days 🔍
11/03/2004 +2 days 🔍
01/10/2005 +68 days 🔍
10/17/2005 +280 days 🔍
06/30/2019 +5004 days 🔍

Sourcesinfo

Advisory: idefense.com⛔
Researcher: http://www.idefense.com
Organization: iDEFENSE
Status: Not defined
Confirmation: 🔍

CVE: CVE-2004-1008 (🔍)
GCVE (CVE): GCVE-0-2004-1008
GCVE (VulDB): GCVE-100-952
X-Force: 17886 - PuTTY SSH2_MSG_DEBUG buffer overflow, High Risk
SecurityFocus: 11549 - PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability
Secunia: 17214 - IBM TotalStorage SAN Volume Controller PuTTY Vulnerability, Moderately Critical
OSVDB: 11165 - PuTTY SSH2_MSG_DEBUG Packet Handling Overflow
SecuriTeam: securiteam.com

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/01/2004 10:28
Updated: 06/30/2019 07:54
Changes: 11/01/2004 10:28 (91), 06/30/2019 07:54 (2)
Complete: 🔍
Cache ID: 216:627:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!