Cisco ASA up to 9.0.3.6 Phone Proxy Untrusted Certificate input validation

CVSS Meta Temp Score
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CTI Interest Score
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10.0$25k-$100k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco ASA up to 9.0.3.6. This impacts an unknown function of the component Phone Proxy Untrusted Certificate Handler. The manipulation results in input validation. This vulnerability is known as CVE-2013-6682. No exploit is available.

Detailsinfo

A vulnerability was found in Cisco ASA up to 9.0.3.6 (Firewall Software). It has been classified as very critical. Affected is an unknown function of the component Phone Proxy Untrusted Certificate Handler. 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 confidentiality, integrity, and availability. CVE summarizes:

The phone-proxy implementation in Cisco Adaptive Security Appliance (ASA) Software 9.0.3.6 and earlier does not properly validate X.509 certificates, which allows remote attackers to cause a denial of service (connection-database corruption) via an invalid entry, aka Bug ID CSCui33299.

The weakness was published 11/08/2013 as Cisco Adaptive Security Appliance Phone Proxy Database Entry Manipulation Vulnerability as confirmed advisory (Website). The advisory is available at tools.cisco.com. The public release has been coordinated with the vendor. This vulnerability is traded as CVE-2013-6682 since 11/07/2013. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 05/15/2017).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 43347 (Cisco Adaptive Security Appliance (ASA) Phone Proxy Database Entry Manipulation Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (88650), SecurityFocus (BID 63624†), OSVDB (99557†), Secunia (SA55632†) and Vulnerability Center (SBV-42352†). Further details are available at tools.cisco.com. Similar entry is available at VDB-11129. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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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: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/07/2013 🔍
11/08/2013 +1 days 🔍
11/08/2013 +0 days 🔍
11/12/2013 +4 days 🔍
11/13/2013 +1 days 🔍
11/15/2013 +2 days 🔍
11/25/2013 +10 days 🔍
05/15/2017 +1267 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Cisco Adaptive Security Appliance Phone Proxy Database Entry Manipulation Vulnerability
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-6682 (🔍)
GCVE (CVE): GCVE-0-2013-6682
GCVE (VulDB): GCVE-100-11130
X-Force: 88650
SecurityFocus: 63624
Secunia: 55632 - Cisco Adaptive Security Appliance (ASA) Phone Proxy Process Certificate Verification Secur, Less Critical
OSVDB: 99557
Vulnerability Center: 42352 - Cisco ASA 9.0.3.6 and Previous Remote Security Bypass Vulnerability due to Improper Certificate Validation, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/15/2013 09:28
Updated: 05/15/2017 11:50
Changes: 11/15/2013 09:28 (46), 05/15/2017 11:50 (24)
Complete: 🔍
Committer:
Cache ID: 216::103

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