Van Dyke Technologies SecureCRT up to 4.0 Beta 2 SSH Server 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, which was classified as critical, was found in Van Dyke Technologies SecureCRT. This affects an unknown function of the component SSH Server. The manipulation results in memory corruption. This vulnerability is reported as CVE-2002-1059. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Van Dyke Technologies SecureCRT. Affected is some unknown functionality of the component SSH Server. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in Van Dyke SecureCRT SSH client before 3.4.6, and 4.x before 4.0 beta 3, allows an SSH server to execute arbitrary code via a long SSH1 protocol version string.

The weakness was disclosed 07/22/2002 by Kyuzo (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2002-1059. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Perl Module and been published even before and not after the advisory. The exploit is shared for download at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 15822 (SecureCRT SSH-1 Protocol Version String Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l.

Upgrading to version 3.4.6 eliminates this vulnerability. Attack attempts may be identified with Snort ID 1838. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8587.

The vulnerability is also documented in the databases at X-Force (9650), Exploit-DB (21634), Tenable (15822), SecurityFocus (BID 5287†) and OSVDB (4991†). Once again VulDB remains the best source for 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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15822
Nessus Name: SecureCRT SSH-1 Protocol Version String Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 15822
OpenVAS Name: SecureCRT SSH1 protocol version string overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: securecrt_ssh1.rb
MetaSploit Name: SecureCRT SSH1 Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SecureCRT 3.4.6

Snort ID: 1838
Snort Message: SERVER-OTHER SSH server banner overflow
Snort Class: 🔍

Suricata ID: 2101838
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

07/22/2002 🔍
07/22/2002 +0 days 🔍
07/23/2002 +0 days 🔍
07/23/2002 +0 days 🔍
10/04/2002 +73 days 🔍
04/08/2004 +552 days 🔍
11/24/2004 +229 days 🔍
11/28/2004 +4 days 🔍
07/29/2014 +3530 days 🔍
05/03/2025 +3931 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Kyuzo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-1059 (🔍)
GCVE (CVE): GCVE-0-2002-1059
GCVE (VulDB): GCVE-100-18972
X-Force: 9650
SecurityFocus: 5287 - SecureCRT SSH1 Identifier String Buffer Overflow Vulnerability
OSVDB: 4991 - SecureCRT SSH-1 Protocol Version String Remote Overflow
Vulnerability Center: 6197 - Buffer Overflow in Van Dyke Technologies SecureCRT <= 4.0 beta 1 Allows Code Execution, High

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

Entryinfo

Created: 07/29/2014 13:20
Updated: 05/03/2025 12:38
Changes: 07/29/2014 13:20 (93), 05/26/2019 21:03 (2), 05/03/2025 12:38 (19)
Complete: 🔍
Cache ID: 216::103

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