Cisco Web Security Appliance up to 9.5.0-444 HTTP Request resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Cisco Web Security Appliance up to 9.5.0-444 and classified as problematic. This impacts an unknown function of the component HTTP Request Handler. The manipulation leads to resource management. This vulnerability is documented as CVE-2016-6407. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cisco Web Security Appliance up to 9.5.0-444 (Anti-Malware Software) and classified as critical. This issue affects an unknown part of the component HTTP Request Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Cisco AsyncOS through 9.5.0-444 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (link saturation) by making many HTTP requests for overlapping byte ranges simultaneously, aka Bug ID CSCuz27219.

The weakness was released 09/17/2016 with Cisco as CSCuz27219 as not defined advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2016-6407 since 07/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/19/2022).

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 vulnerability database at SecurityFocus (BID 92955†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 7.5

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 63708
OpenVAS Name: Cisco Web Security Appliance HTTP Load Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

07/26/2016 🔍
09/14/2016 +50 days 🔍
09/16/2016 +2 days 🔍
09/17/2016 +1 days 🔍
09/18/2016 +1 days 🔍
09/19/2022 +2192 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuz27219
Organization: Cisco
Status: Not defined

CVE: CVE-2016-6407 (🔍)
GCVE (CVE): GCVE-0-2016-6407
GCVE (VulDB): GCVE-100-91661
SecurityFocus: 92955 - Cisco Web Security Appliance CVE-2016-6407 Denial of Service Vulnerability
SecurityTracker: 1036829

Entryinfo

Created: 09/18/2016 09:59
Updated: 09/19/2022 07:12
Changes: 09/18/2016 09:59 (55), 04/18/2019 22:50 (12), 09/19/2022 07:12 (2)
Complete: 🔍
Cache ID: 216:D5F:103

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

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