Cisco Web Security Appliance up to 8.8 HTTP Length 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.
7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Web Security Appliance up to 8.8. It has been declared as critical. Affected is an unknown function of the component HTTP Length Request Handler. Such manipulation leads to input validation. This vulnerability is listed as CVE-2016-1382. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Web Security Appliance up to 8.8 (Anti-Malware Software) and classified as critical. Affected by this issue is some unknown processing of the component HTTP Length Request Handler. 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.

The weakness was presented 05/18/2016 with Cisco as cisco-sa-20160518-wsa3 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2016-1382 since 01/04/2016. 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.

The vulnerability scanner Nessus provides a plugin with the ID 91338 (Cisco Web Security Appliance Multiple DoS Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316005 (Cisco Web Security Appliance HTTP Length Denial of Service Vulnerability (cisco-sa-20160518-wsa3)).

Upgrading to version 9.0.1-162 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 Tenable (91338), SecurityFocus (BID 90742†) and SecurityTracker (ID 1035910†). See VDB-87546, VDB-87547 and VDB-87549 for similar entries. Once again VulDB remains the best source for 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: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 91338
Nessus Name: Cisco Web Security Appliance Multiple DoS Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802919
OpenVAS Name: Cisco WSA Multiple Vulnerabillities 05/16
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Web Security Appliance 9.0.1-162

Timelineinfo

01/04/2016 🔍
05/18/2016 +135 days 🔍
05/18/2016 +0 days 🔍
05/18/2016 +0 days 🔍
05/20/2016 +2 days 🔍
05/24/2016 +4 days 🔍
05/26/2016 +2 days 🔍
10/14/2024 +3063 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160518-wsa3
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-1382 (🔍)
GCVE (CVE): GCVE-0-2016-1382
GCVE (VulDB): GCVE-100-87548
SecurityFocus: 90742
SecurityTracker: 1035910

See also: 🔍

Entryinfo

Created: 05/20/2016 10:32
Updated: 10/14/2024 19:29
Changes: 05/20/2016 10:32 (77), 12/05/2018 09:37 (2), 08/21/2022 11:58 (4), 10/14/2024 19:29 (16)
Complete: 🔍
Cache ID: 216:7CD:103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!