The proxy engine in Cisco Advanced Malware Protection (AMP), when used with Email Security Appliance (ESA) 9.5.0-201, 9.6.0-051, and 9.7.0-125, allows remote attackers to bypass intended content restrictions via a malformed e-mail message containing an encoded file, aka Bug ID CSCux45338.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Email_security_appliance_firmeware | Cisco | 9.1.0-032 (including) | 9.1.0-032 (including) |
| Email_security_appliance_firmeware | Cisco | 9.5.0-201 (including) | 9.5.0-201 (including) |
| Email_security_appliance_firmeware | Cisco | 9.6.0-051 (including) | 9.6.0-051 (including) |
| Email_security_appliance_firmeware | Cisco | 9.7.0-125 (including) | 9.7.0-125 (including) |
| Email_security_appliance_firmeware | Cisco | 9.7.0-782 (including) | 9.7.0-782 (including) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: