Cisco Unified IP Phone 9900 up to 9.3(2) 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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Unified IP Phone 9900 up to 9.3(2). The affected element is an unknown function. Such manipulation leads to input validation. This vulnerability is documented as CVE-2013-5532. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco Unified IP Phone 9900 up to 9.3(2) (IP Phone Software). Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

Buffer overflow in the web-application interface on Cisco 9900 IP phones allows remote attackers to cause a denial of service (webapp interface outage) via long values in unspecified fields, aka Bug ID CSCuh10343.

The weakness was released 10/10/2013 with Cisco as webapp Buffer Overflow Vulnerability as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2013-5532 since 08/22/2013. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 9.3(4.17) 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 SecurityFocus (BID 62944†), OSVDB (98338†) and Secunia (SA55275†). Entry connected to this vulnerability is available at VDB-10675. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• IP Phone Software

Vendor

• Cisco

Name

• Unified IP Phone 9900

Version

• 9.3(2)

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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: Yes

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: 🔍

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

Upgrade: Unified IP Phone 9900 9.3(4.17)

Timelineinfo

08/22/2013 🔍
10/10/2013 +49 days 🔍
10/10/2013 +0 days 🔍
10/10/2013 +0 days 🔍
10/10/2013 +0 days 🔍
10/11/2013 +1 days 🔍
10/15/2013 +4 days 🔍
05/13/2018 +1671 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: webapp Buffer Overflow Vulnerability
Organization: Cisco
Status: Confirmed

CVE: CVE-2013-5532 (🔍)
GCVE (CVE): GCVE-0-2013-5532
GCVE (VulDB): GCVE-100-10676
SecurityFocus: 62944 - Cisco Unified IP Phones 9900 Series CVE-2013-5532 Buffer Overflow Vulnerability
Secunia: 55275 - Cisco Unified IP Phones 9900 Series webapp Interface Buffer Overflow Vulnerability, Less Critical
OSVDB: 98338

See also: 🔍

Entryinfo

Created: 10/15/2013 11:46
Updated: 05/13/2018 10:23
Changes: 10/15/2013 11:46 (57), 05/13/2018 10:23 (7)
Complete: 🔍
Committer: olku
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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