Cisco IOS XE up to 3.6s 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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Cisco IOS XE up to 3.6s and classified as problematic. The affected element is an unknown function. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2012-5723. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS XE up to 3.6s (Router Operating System). This affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

Cisco ASR 1000 devices with software before 3.8S, when BDI routing is enabled, allow remote attackers to cause a denial of service (device reload) via crafted (1) broadcast or (2) multicast ICMP packets with fragmentation, aka Bug ID CSCub55948.

The weakness was released 04/24/2014 with Cisco (Website). It is possible to read the advisory at cisco.com. This vulnerability is uniquely identified as CVE-2012-5723 since 11/02/2012. The exploitability is told to be easy. The attack needs to be done within the local network. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.6s%28.1%29 eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 68242†) and Vulnerability Center (SBV-45159†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS XE

Version

• 3.6a
• 3.6b
• 3.6c
• 3.6d
• 3.6e
• 3.6f
• 3.6g
• 3.6h
• 3.6i
• 3.6j
• 3.6k
• 3.6l
• 3.6m
• 3.6n
• 3.6o
• 3.6p
• 3.6q
• 3.6r
• 3.6s

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IOS XE 3.6s%28.1%29

Timelineinfo

11/02/2012 🔍
04/24/2014 +538 days 🔍
04/24/2014 +0 days 🔍
04/24/2014 +0 days 🔍
04/24/2014 +0 days 🔍
06/29/2014 +66 days 🔍
03/25/2015 +269 days 🔍
05/31/2017 +798 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-5723 (🔍)
GCVE (CVE): GCVE-0-2012-5723
GCVE (VulDB): GCVE-100-69471
SecurityFocus: 68242 - Cisco ASR 1000 Series Routers CVE-2012-5723 Denial of Service Vulnerability
Vulnerability Center: 45159 - Cisco IOS XE <3.8S on ASR 1000 with BDI Routing Remote DoS via Crafted Broadcast or Multicast ICMP Packets, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 03/25/2015 16:45
Updated: 05/31/2017 11:39
Changes: 03/25/2015 16:45 (55), 05/31/2017 11:39 (5)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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