Cisco CatOS up to 5.5.4a Telnet Authentication resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco CatOS up to 5.5.4a. The affected element is an unknown function of the component Telnet Authentication. The manipulation leads to resource management. This vulnerability is documented as CVE-2001-0041. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco CatOS up to 5.5.4a. It has been rated as critical. This issue affects an unknown functionality of the component Telnet Authentication. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts.

The weakness was released 12/06/2000 with Cisco (Website). It is possible to read the advisory at cisco.com. The identification of this vulnerability is CVE-2001-0041. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Perl. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10978 (Cisco Catalyst Telnetd Authentication Failure Saturation Memory Leak Remote DoS (CSCds66191)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO, running in the context l and relying on port 161.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5656), Exploit-DB (20473), Tenable (10978), SecurityFocus (BID 2072†) and OSVDB (801†). Entries connected to this vulnerability are available at VDB-503, VDB-15495, VDB-16074 and VDB-16156. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10978
Nessus Name: Cisco Catalyst Telnetd Authentication Failure Saturation Memory Leak Remote DoS (CSCds66191)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2000 🔍
12/06/2000 +0 days 🔍
12/06/2000 +0 days 🔍
02/16/2001 +72 days 🔍
06/05/2002 +474 days 🔍
09/12/2002 +99 days 🔍
09/09/2003 +361 days 🔍
07/03/2014 +3950 days 🔍
08/21/2024 +3702 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2001-0041 (🔍)
GCVE (CVE): GCVE-0-2001-0041
GCVE (VulDB): GCVE-100-16451
X-Force: 5656 - Cisco Catalyst telnet server memory leak denial of service
SecurityFocus: 2072 - Cisco Catalyst Memory Leak Denial of Service Vulnerability
OSVDB: 801 - Cisco Catalyst Telnetd Authentication Failure Saturation Memory Leak Remote DoS
Vulnerability Center: 2062 - [cisco-sa-20001206-catalyst-memleak] DoS in Cisco Catalyst 4000, 5000 and 6000 Series Switches, High

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

Entryinfo

Created: 07/03/2014 12:03
Updated: 08/21/2024 22:16
Changes: 07/03/2014 12:03 (75), 05/12/2019 20:28 (1), 08/21/2024 22:16 (22)
Complete: 🔍
Cache ID: 216::103

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