VDB-10981 · CVE-2013-5537 · SA55440

Cisco Content Security Management Appliance up to 8.1 HTTP/HTTPS Request input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability classified as critical was found in Cisco Content Security Management Appliance up to 8.1. Affected by this vulnerability is an unknown code block of the component HTTP/HTTPS Request Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

The web framework on Cisco Web Security Appliance (WSA), Email Security Appliance (ESA), and Content Security Management Appliance (SMA) devices does not properly manage the state of HTTP and HTTPS sessions, which allows remote attackers to cause a denial of service (management GUI outage) via multiple TCP connections, aka Bug IDs CSCuj59411, CSCuf89818, and CSCuh05635.

The weakness was released 10/23/2013 as Cisco WSA, ESA, and SMA Management GUI Denial of Service Vulnerability as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The public release was coordinated with Cisco. This vulnerability is known as CVE-2013-5537 since 08/22/2013. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at tools.cisco.com. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

Additional details are provided at tools.cisco.com.

Affected

  • Content Security Management Appliance
  • Web Security Appliance
  • Email Security Appliance

Productinfo

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tools.cisco.com

Timelineinfo

08/22/2013 🔍
10/22/2013 +61 days 🔍
10/23/2013 +1 days 🔍
10/23/2013 +0 days 🔍
10/24/2013 +1 days 🔍
10/25/2013 +1 days 🔍
03/25/2019 +1977 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Cisco WSA, ESA, and SMA Management GUI Denial of Service Vulnerability
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5537 (🔍)
Secunia: 55440 - Cisco Multiple Products Management GUI Denial of Service Vulnerability, Less Critical
OSVDB: 98883

Misc.: 🔍

Entryinfo

Created: 10/25/2013 10:25
Updated: 03/25/2019 07:17
Changes: 10/25/2013 10:25 (59), 03/25/2019 07:17 (1)
Complete: 🔍

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