Vulnerabilities

A Vulnerability is a state in a computing system (or set of systems) which either (a) allows an attacker to execute commands as another user, (b) allows an attacker to access data that is contrary to the specified access restrictions for that data, (c) allows an attacker to pose as another entity, or (d) allows an attacker to conduct a denial of service.Advisories relating to Symantec products may be viewed here.

Cisco Email Security Appliance CVE-2019-15971 Remote Security Bypass Vulnerability

Risk:
Medium
Date Discovered:
November 20, 2019
Description:
Cisco Email Security Appliance is prone to a remote security-bypass vulnerability. An attacker can exploit this issue to bypass security restrictions and perform unauthorized actions. This may aid in further attacks. This issue is being tracked by Cisco Bug ID CSCvh88851.
Technologies Affected
  • Cisco AsyncOS Software
  • Cisco Email Security Appliance 10.0.0-082
  • Cisco Email Security Appliance 10.0.1-083
  • Cisco Email Security Appliance 10.0.2-020
  • Cisco Email Security Appliance 10.0.3-004
  • Cisco Email Security Appliance 11.0.0-035
  • Cisco Email Security Appliance 11.1.0-069
  • Cisco Email Security Appliance 11.1.1-037
  • Cisco Email Security Appliance 11.1.2
  • Cisco Email Security Appliance 12.0.0
  • Cisco Email Security Appliance 12.0.0-419
  • Cisco Email Security Appliance 12.5.0
Recommendations
  • Block external access at the network boundary, unless external parties require service.
    If global access isn't needed, block access at the network perimeter to computers hosting the vulnerable application.
  • Run all software as a nonprivileged user with minimal access rights.
    To limit the potential damage that successful exploits may achieve, run all nonadministrative software as an unprivileged user.
  • Deploy network intrusion detection systems to monitor network traffic for malicious activity.
    Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Updates are available. Please see the references or vendor advisory for more information.
References
Credits
Cisco
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