Cisco Web Security Appliance up to 8.8 HTTP Response Code Memory resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Web Security Appliance up to 8.8. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component HTTP Response Code Handler. Performing a manipulation results in resource management (Memory). This vulnerability is cataloged as CVE-2016-1383. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Web Security Appliance up to 8.8 (Anti-Malware Software). It has been classified as critical. This affects an unknown function of the component HTTP Response Code Handler. The manipulation with an unknown input leads to a resource management vulnerability (Memory). CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Memory leak in Cisco AsyncOS through 8.8 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (memory consumption) via an unspecified HTTP status code, aka Bug ID CSCur28305.

The weakness was shared 05/18/2016 with Cisco Systems as cisco-sa-20160518-wsa4 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2016-1383 since 01/04/2016. 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 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 316006 (Cisco Web Security Appliance Connection Denial of Service Vulnerability (cisco-sa-20160518-wsa4)).

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 1035911†). The entries VDB-87546, VDB-87547 and VDB-87548 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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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

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

NVD Base Score: 🔍

Exploitinginfo

Name: Memory
Class: Resource management / Memory
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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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-wsa4
Organization: Cisco Systems
Status: Confirmed

CVE: CVE-2016-1383 (🔍)
GCVE (CVE): GCVE-0-2016-1383
GCVE (VulDB): GCVE-100-87549
SecurityFocus: 90742
SecurityTracker: 1035911

See also: 🔍

Entryinfo

Created: 05/20/2016 10:32
Updated: 10/14/2024 18:35
Changes: 05/20/2016 10:32 (79), 12/05/2018 09:37 (2), 10/14/2024 18:35 (19)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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