Cisco Web Security Appliance 9.0.1-162/9.1.1-074 HTTP URL Parser resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Web Security Appliance 9.0.1-162/9.1.1-074. Affected by this issue is some unknown functionality of the component HTTP URL Parser. Performing a manipulation results in resource management. This vulnerability is identified as CVE-2016-6469. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cisco Web Security Appliance 9.0.1-162/9.1.1-074 (Anti-Malware Software). This affects an unknown code of the component HTTP URL Parser. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

A vulnerability in HTTP URL parsing of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) vulnerability due to the proxy process unexpectedly restarting. More Information: CSCvb04312. Known Affected Releases: 9.0.1-162 9.1.1-074. Known Fixed Releases: 10.1.0-129 9.1.2-010.

The bug was discovered 12/07/2016. The weakness was released 12/14/2016 with Cisco as CSCvb04312 as confirmed advisory (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2016-6469 since 07/26/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 10.1.0-129 or 9.1.2-010 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94775†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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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OpenVAS ID: 803167
OpenVAS Name: Cisco Web Security Appliance HTTP URL Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Security Appliance 10.1.0-129/9.1.2-010

Timelineinfo

07/26/2016 🔍
12/07/2016 +134 days 🔍
12/07/2016 +0 days 🔍
12/13/2016 +6 days 🔍
12/14/2016 +1 days 🔍
12/14/2016 +0 days 🔍
07/05/2019 +933 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCvb04312⛔
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6469 (🔍)
GCVE (CVE): GCVE-0-2016-6469
GCVE (VulDB): GCVE-100-94161
SecurityFocus: 94775 - Cisco AsyncOS CVE-2016-6469 Remote Denial of Service Vulnerability

Entryinfo

Created: 12/14/2016 11:01
Updated: 07/05/2019 16:06
Changes: 12/14/2016 11:01 (65), 07/05/2019 16:06 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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