Cisco Web Security Appliance 8.5.3-055/9.1.0-000/9.5.0-235 Proxy Engine HTTP Method 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Cisco Web Security Appliance 8.5.3-055/9.1.0-000/9.5.0-235. This vulnerability affects unknown code of the component Proxy Engine. This manipulation as part of HTTP Method causes 7pk security. This vulnerability is handled as CVE-2016-1296. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cisco Web Security Appliance 8.5.3-055/9.1.0-000/9.5.0-235 (Anti-Malware Software). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Proxy Engine. The manipulation as part of a HTTP Method leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The proxy engine on Cisco Web Security Appliance (WSA) devices with software 8.5.3-055, 9.1.0-000, and 9.5.0-235 allows remote attackers to bypass intended proxy restrictions via a malformed HTTP method, aka Bug ID CSCux00848.

The weakness was released 01/20/2016 as CSCux00848 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2016-1296. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1211 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 88592 (Cisco Web Security Appliance Proxy Restrictions Bypass), 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.

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 Tenable (88592), SecurityFocus (BID 81434†) and Vulnerability Center (SBV-56046†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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

Class: 7pk security
CWE: CWE-254
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: 88592
Nessus Name: Cisco Web Security Appliance Proxy Restrictions Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803167
OpenVAS Name: Cisco Web Security Appliance Security Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2016 🔍
01/19/2016 +15 days 🔍
01/20/2016 +1 days 🔍
01/20/2016 +0 days 🔍
01/21/2016 +1 days 🔍
01/22/2016 +1 days 🔍
02/05/2016 +14 days 🔍
07/05/2022 +2342 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCux00848
Status: Confirmed

CVE: CVE-2016-1296 (🔍)
GCVE (CVE): GCVE-0-2016-1296
GCVE (VulDB): GCVE-100-80611
SecurityFocus: 81434
SecurityTracker: 1034763
Vulnerability Center: 56046 - [cisco-sa-20160119-wsa] Cisco WSA Remote Proxy Restrictions Bypass in Proxy Engine, Medium

Entryinfo

Created: 01/22/2016 09:31
Updated: 07/05/2022 17:52
Changes: 01/22/2016 09:31 (65), 07/03/2018 09:18 (11), 07/05/2022 17:52 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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