CVE-2016-6357 Security feature bypass in Cisco AsyncOS through 9.9.6-026
An unauthenticated remote attacker can bypass email drop filters by sending an email with a corrupted attachment, allowing malicious content to reach recipients.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-6357?
CVE-2016-6357 is a high-severity vulnerability in Cisco Email Security Appliance, published on 28 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the configured security policies, including drop email filtering, in Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass a configured drop filter by using an email with a corrupted attachment. More Information: CSCuz01651. Known Affected Releases: 10.0.9-015 9.7.1-066 9.9.6-026.
Weakness: CWE-388
Which versions are affected by CVE-2016-6357?
It affects 1 product.
Products include Cisco Email Security Appliance.
How do I fix CVE-2016-6357?
No fix has been published for CVE-2016-6357 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-6357 being exploited?
There is no known exploitation of CVE-2016-6357 in the wild and no public exploit code.
Other vulnerabilities in Cisco Email Security Appliance
- CVE-2022-20798 Cisco Email Security Appliance and Cisco Secure Email and Web Manager External Authentication Bypass Vulnerability
- CVE-2015-6291 Denial of service in n/a
- CVE-2022-20664 Cisco Email Security Appliance and Cisco Secure Email and Web Manager Information Disclosure Vulnerability
- CVE-2022-20960 Denial of service in Cisco Secure Email
- CVE-2018-0419 Security feature bypass in Email Security Appliance (ESA)
Sources
Also known as GHSA-mjv5-4w95-ppq8.