Cisco IOS 3.5e SNMP Service SNMP Polling Request input validation

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.
5.7$0-$5k0.00

A vulnerability classified as problematic was found in Cisco IOS 3.5e (Router Operating System). This vulnerability affects an unknown function of the component SNMP Service. The manipulation as part of a SNMP Polling Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The SNMP module in Cisco IOS XE 3.5E allows remote authenticated users to cause a denial of service (device reload) by polling frequently, aka Bug ID CSCug65204.

The weakness was presented 05/16/2014 with Cisco as CSCug65204 as confirmed security notice (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2014-3269 since 05/07/2014. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 76969 (Cisco IOS XE SNMP DoS (CSCug65204)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 15.1(1)XO0.21, 15.1(2)SG3.0.1, 15.1(2)SG3, 15.1(1.0.33)XO1 or 15.1(1)XO1 eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. It is possible to mitigate the problem by applying the configuration setting no snmp-server. 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 security notice contains the following remark:

An SNMP view can be used to restrict polling of the MIB: snmp-server view restrict iso included / snmp-server view restrict ciscoProcessMIB excluded / snmp-server community mycommunity view restrict RO

The vulnerability is also documented in the databases at X-Force (93221) and Tenable (76969). Additional details are provided at tools.cisco.com. See VDB-13255 for similar entry.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 76969
Nessus Name: Cisco IOS XE SNMP DoS (CSCug65204)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS 15.1(1)XO0.21/15.1(2)SG3.0.1/15.1(2)SG3/15.1(1.0.33)XO1/15.1(1)XO1
Config: no snmp-server

Timelineinfo

05/07/2014 🔍
05/16/2014 +8 days 🔍
05/16/2014 +0 days 🔍
05/16/2014 +0 days 🔍
05/16/2014 +0 days 🔍
05/20/2014 +4 days 🔍
05/20/2014 +0 days 🔍
05/20/2014 +0 days 🔍
08/01/2014 +73 days 🔍
06/19/2021 +2514 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCug65204
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3269 (🔍)
X-Force: 93221 - Cisco IOS XE SNMP module denial of service, Medium Risk
Vulnerability Center: 44567 - Cisco IOS XE Remote DoS via Continuous SNMP Polling Requests, Medium
SecurityFocus: 67459

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/20/2014 12:04 PM
Updated: 06/19/2021 07:26 PM
Changes: 05/20/2014 12:04 PM (78), 05/28/2017 03:22 AM (2), 06/19/2021 07:18 PM (4), 06/19/2021 07:26 PM (1)
Complete: 🔍
Cache ID: 3:A93:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!