Cisco IOS 12.0 ACL Rule privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Cisco IOS 12.0. Affected by this issue is some unknown functionality of the component ACL Rule Handler. Executing a manipulation can lead to privileges management. This vulnerability is tracked as CVE-2001-0864. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS 12.0 (Router Operating System). This vulnerability affects an unknown code block of the component ACL Rule Handler. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions.

The bug was discovered 11/14/2001. The weakness was disclosed 11/14/2001 by FIRST with Cisco (Website). The advisory is available at cisco.com. This vulnerability was named CVE-2001-0864. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 48959 (Multiple Vulnerabilities in Access Control List Implementation for Cisco 12000 Series Internet Router - 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.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (7553), Tenable (48959), SecurityFocus (BID 3536†), OSVDB (1986†) and Vulnerability Center (SBV-3434†). The entries VDB-17720, VDB-17721, VDB-17723 and VDB-17724 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

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
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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: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 48959
Nessus Name: Multiple Vulnerabilities in Access Control List Implementation for Cisco 12000 Series Internet Router - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

11/14/2001 🔍
11/14/2001 +0 days 🔍
11/14/2001 +0 days 🔍
11/14/2001 +0 days 🔍
11/14/2001 +0 days 🔍
12/06/2001 +22 days 🔍
02/21/2003 +442 days 🔍
01/13/2004 +325 days 🔍
09/01/2010 +2423 days 🔍
07/11/2014 +1409 days 🔍
05/19/2019 +1773 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: FIRST
Organization: Cisco
Status: Not defined

CVE: CVE-2001-0864 (🔍)
GCVE (CVE): GCVE-0-2001-0864
GCVE (VulDB): GCVE-100-17722

OVAL: 🔍

X-Force: 7553 - Cisco 12000 series routers \
SecurityFocus: 3536 - Cisco 12000 Series Internet Router ACL Failure To Drop Packets Vulnerability
OSVDB: 1986 - Cisco 12000 Series Router deny ip any any ACL Bypass
Vulnerability Center: 3434 - [cisco-sa-20011114-gsr-acl] Cisco 12000 with IOS 12.0 \, High

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

Entryinfo

Created: 07/11/2014 10:49
Updated: 05/19/2019 11:29
Changes: 07/11/2014 10:49 (77), 05/19/2019 11:29 (1)
Complete: 🔍
Cache ID: 216::103

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