Cisco IOS 8.2/8.3/9.0/9.1 Access List privileges management

entryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

A vulnerability classified as critical has been found in Cisco IOS 8.2/8.3/9.0/9.1 (Router Operating System). This affects an unknown part of the component Access List Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-269. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 12/10/1992 as CSCdi34061 as confirmed advisory (Website). The advisory is shared at cert.org. This vulnerability is uniquely identified as CVE-1999-1466. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 10973 (Cisco IOS established Keyword ACL Bypass (CSCdi34061)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 8.3, 9.0 or 9.1 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting no ip route-cache. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 53), X-Force (1248), Vulnerability Center (SBV-2058) and Tenable (10973). See 13652 and 14213 for similar entries.

Productinfoedit

Type

Vendor

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

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: 🔍

CVSSv2infoedit

AVACAuCIA
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-269
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 10973
Nessus Name: Cisco IOS established Keyword ACL Bypass (CSCdi34061)
Nessus Family: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS 8.3/9.0/9.1
Config: no ip route-cache

Timelineinfoedit

12/10/1992 🔍
12/10/1992 +0 days 🔍
12/10/1992 +0 days 🔍
12/10/1992 +0 days 🔍
09/01/1998 +2091 days 🔍
09/09/2003 +1834 days 🔍
06/17/2014 +3934 days 🔍
04/10/2015 +297 days 🔍
01/13/2018 +1009 days 🔍

Sourcesinfoedit

Vendor: https://www.cisco.com/

Advisory: CSCdi34061
Status: Confirmed

CVE: CVE-1999-1466 (🔍)
SecurityFocus: 53 - Cisco Access List Vulnerability
X-Force: 1248 - Cisco IOS access control list using the \
Vulnerability Center: 2058 - [cisco-sa-19950601-key-packet-bypass] Cisco IOS established Keyword Allows Filtering Bypass, Low

See also: 🔍

Entryinfoedit

Created: 06/17/2014 12:34 PM
Updated: 01/13/2018 12:44 PM
Changes: (6) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai
Complete: 🔍

Comments

No comments yet. Please log in to comment.

Do you know our Splunk app?

Download it now for free!