A vulnerability scan of the ACOS management interface indicated that the HTTPS service supported TLS sessions using ciphers based on DES and IDEA algorithms which are no longer recommended for use with TLS 1.2. Accordingly, the following vulnerabilities are addressed in this document.
|TLS/SSL Server Supports DES and IDEA Cipher Suites 
The table below indicates releases of ACOS exposed to these vulnerabilities and ACOS releases that address these issues or are otherwise unaffected by them.
Customers using affected ACOS releases can overcome vulnerability exposures by updating to the indicated resolved release. If the table does not list a corresponding resolved or unaffected release, then no ACOS release update is currently available.
|Releases Resolved or Unaffected
|4.1.2, 4.1.1 (a)
|4.1.100 – 4.1.100-P5-SP1
|4.1.0 – 4.1.0-P7
|3.1.0-P1 – 3.1.4
|3.2.0 – 3.2.1-P1
|2.8.2, 2.7.2, 2.7.1, 2.6.1-GR1 (a)
(a) Including all updates to the release(s).
Workarounds and Mitigations
Common security best practices in the industry for network appliance management and control planes can enhance protection against remote malicious attacks. Limit the exploitable attack surface for critical, infrastructure, networking equipment through the use of access lists or firewall filters to and from only trusted, administrative networks or hosts.
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