Cisco IOS up to 12.0 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 was found in Cisco IOS up to 12.0. It has been classified as problematic. Impacted is an unknown function. This manipulation causes resource management. The identification of this vulnerability is CVE-2005-1021. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Cisco IOS up to 12.0 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

Memory leak in Secure Shell (SSH) in Cisco IOS 12.0 through 12.3, when authenticating against a TACACS+ server, allows remote attackers to cause a denial of service (memory consumption) via an incorrect username or password.

The bug was discovered 04/06/2005. The weakness was shared 04/06/2005 (Website). It is possible to read the advisory at cisco.com. This vulnerability is known as CVE-2005-1021 since 04/10/2005. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but an exploit is available.

After even before and not, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 48983 (Vulnerabilities in Cisco IOS Secure Shell Server - 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 43098 (Cisco IOS Secure Shell Server Memory Leak Denial of Service Vulnerability (cisco-sa-20050406-ssh)).

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.

The vulnerability is also documented in the databases at X-Force (19991), Tenable (48983), SecurityFocus (BID 13042†), OSVDB (15303†) and Secunia (SA14854†). The entry VDB-1336 is related to this item. Be aware that VulDB is the high quality source 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: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 48983
Nessus Name: Vulnerabilities in Cisco IOS Secure Shell Server - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/06/2005 🔍
04/06/2005 +0 days 🔍
04/06/2005 +0 days 🔍
04/06/2005 +0 days 🔍
04/06/2005 +0 days 🔍
04/06/2005 +0 days 🔍
04/07/2005 +0 days 🔍
04/07/2005 +0 days 🔍
04/10/2005 +2 days 🔍
04/28/2005 +18 days 🔍
05/02/2005 +4 days 🔍
09/01/2010 +1948 days 🔍
03/10/2015 +1651 days 🔍
05/31/2019 +1543 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Status: Not defined

CVE: CVE-2005-1021 (🔍)
GCVE (CVE): GCVE-0-2005-1021
GCVE (VulDB): GCVE-100-24799

OVAL: 🔍

X-Force: 19991
SecurityFocus: 13042 - Cisco IOS Secure Shell Server Memory Leak Denial Of Service Vulnerability
Secunia: 14854 - Cisco IOS Secure Shell Server Denial of Service Vulnerabilities, Less Critical
OSVDB: 15303 - Cisco IOS Secure Shell Server TACACS+ Authentication Failure Memory Exhaustion DoS
Vulnerability Center: 7712 - [cisco-sa-20050406-ssh] DoS in Cisco IOS 12.0 - 12.3 via Memory Leak in SSH, Medium

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

Entryinfo

Created: 03/10/2015 23:05
Updated: 05/31/2019 20:41
Changes: 03/10/2015 23:05 (77), 05/31/2019 20:41 (3)
Complete: 🔍
Cache ID: 216:C48:103

Be aware that VulDB is the high quality source for vulnerability data.

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