Cisco IOS up to 12.0.7 Line Card Failure privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco IOS up to 12.0.7. This affects an unknown part of the component Line Card Failure Handler. Such manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2000-0700. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS up to 12.0.7 (Router Operating System). Affected by this issue is an unknown functionality of the component Line Card Failure Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cisco Gigabit Switch Routers (GSR) with Fast Ethernet / Gigabit Ethernet cards, from IOS versions 11.2(15)GS1A up to 11.2(19)GS0.2 and some versions of 12.0, do not properly handle line card failures, which allows remote attackers to bypass ACLs or force the interface to stop forwarding packets.

The weakness was disclosed 08/03/2000 by FIRST with Cisco (Website). The advisory is available at cisco.com. This vulnerability is handled as CVE-2000-0700. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 10975 (Cisco Gigabit Switch Routers (GSR) Line Card Failure ACL Bypas (CSCdp35794)), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43081 (Cisco IOS Gigabit Switch Routers ACL Bypass Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (10975), SecurityFocus (BID 1541†), OSVDB (793†) and Vulnerability Center (SBV-174†). The entry VDB-81896 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10975
Nessus Name: Cisco Gigabit Switch Routers (GSR) Line Card Failure ACL Bypas (CSCdp35794)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/03/2000 🔍
08/03/2000 +0 days 🔍
10/20/2000 +78 days 🔍
10/20/2000 +0 days 🔍
06/05/2002 +593 days 🔍
09/12/2002 +99 days 🔍
10/22/2002 +39 days 🔍
06/27/2014 +4266 days 🔍
10/13/2025 +4125 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: FIRST
Organization: Cisco
Status: Confirmed

CVE: CVE-2000-0700 (🔍)
GCVE (CVE): GCVE-0-2000-0700
GCVE (VulDB): GCVE-100-15842

OVAL: 🔍

SecurityFocus: 1541 - Cisco Gigabit Switch Router with Fast/Gigabit Ethernet Cards ACL Bypass/DoS Vulnerabilities
OSVDB: 793 - Cisco Gigabit Switch Routers (GSR) Line Card Failure ACL Bypass
Vulnerability Center: 174 - [cisco-sa-20000803-grs-acl-bypass-dos] DoS in IOS 11.2 Running on Gigabit Switch Routers, Medium

See also: 🔍

Entryinfo

Created: 06/27/2014 14:49
Updated: 10/13/2025 01:32
Changes: 06/27/2014 14:49 (71), 05/05/2019 11:42 (1), 10/13/2025 01:32 (20)
Complete: 🔍
Cache ID: 216::103

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