The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Cisco AsyncOS: denial of service via SSH

Synthesis of the vulnerability 

An attacker can send a malicious SSH packet to Cisco AsyncOS, in order to trigger a denial of service.
Vulnerable software: AsyncOS, Cisco ESA, Cisco WSA.
Severity of this announce: 2/4.
Creation date: 15/07/2015.
Revision date: 01/09/2015.
Références of this computer vulnerability: 39785, CSCuq05636, CSCur13704, CSCuv43307, CSCuv99383, CVE-2015-4236, VIGILANCE-VUL-17407.

Description of the vulnerability 

The Cisco AsyncOS product has a service to manage received SSH packets.

However, when a malicious packet is received, a fatal error occurs.

An attacker can therefore send a malicious SSH packet to Cisco AsyncOS, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer threat bulletin impacts software or systems such as AsyncOS, Cisco ESA, Cisco WSA.

Our Vigil@nce team determined that the severity of this security threat is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer vulnerability alert.

Solutions for this threat 

Cisco AsyncOS, ESA: solution CSCuq05636.
The solution CSCuq05636 is available:
  https://tools.cisco.com/bugsearch/bug/CSCuq05636

Cisco AsyncOS, ESA: solution CSCur13704.
The solution CSCur13704 is available:
  https://tools.cisco.com/bugsearch/bug/CSCur13704

Cisco AsyncOS, ESA: solution CSCuv43307.
The solution CSCuv43307 is available:
  https://tools.cisco.com/bugsearch/bug/CSCuv43307

Cisco AsyncOS, WSA: solution CSCuv99383.
The solution CSCuv99383 is available:
  https://tools.cisco.com/bugsearch/bug/CSCuv99383
  https://tools.cisco.com/quickview/bug/CSCuv99383
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a cybersecurity alert. The Vigil@nce computer vulnerability tracking service alerts your teams of vulnerabilities or threats impacting your information system.