Cisco IOS 11.3 Distributed Fast Switching 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, which was classified as critical, was found in Cisco IOS 11.3. Affected by this issue is some unknown functionality of the component Distributed Fast Switching Handler. The manipulation results in privileges management. This vulnerability is reported as CVE-1999-1465. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS 11.3 (Router Operating System). Affected is some unknown functionality of the component Distributed Fast Switching Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862.

The weakness was disclosed 12/31/1999 as CSCdk43862 as confirmed advisory (Website). The advisory is shared for download at cisco.com. This vulnerability is traded as CVE-1999-1465. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 48945 (Cisco IOS DFS Access List Leakage - 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 even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (1401), Tenable (48945), OSVDB (8805†) and Vulnerability Center (SBV-11214†). The entry VDB-15191 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 48945
Nessus Name: Cisco IOS DFS Access List Leakage - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/05/1998 🔍
11/05/1998 +0 days 🔍
12/31/1999 +421 days 🔍
12/31/1999 +0 days 🔍
04/25/2006 +2307 days 🔍
09/01/2010 +1590 days 🔍
06/23/2014 +1391 days 🔍
04/20/2026 +4319 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCdk43862
Status: Confirmed

CVE: CVE-1999-1465 (🔍)
GCVE (CVE): GCVE-0-1999-1465
GCVE (VulDB): GCVE-100-15192
X-Force: 1401
OSVDB: 8805 - CVE-1999-1465 - Cisco - IOS - Unspecified Issue
Vulnerability Center: 11214 - [cisco-sa-19981105-ios-dfs-acl] Cisco IOS w\\ DFS Enabled Network Access Bypass, High

See also: 🔍

Entryinfo

Created: 06/23/2014 13:06
Updated: 04/20/2026 06:51
Changes: 06/23/2014 13:06 (65), 06/16/2019 18:12 (3), 04/20/2026 06:51 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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