CVE-2017-12309
First published: Thu Nov 16 2017(Updated: )
A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses. An exploit could allow the attacker to perform cross-site scripting attacks, cross-user defacement, web cache poisoning, and similar exploits. Cisco Bug IDs: CSCvf16705.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Email Security Appliance Firmware | =10.0.2-020 | |
| Cisco Email Security Appliance Firmware | =11.0.0-105 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2017-12309.
What is the severity of CVE-2017-12309?
The severity of CVE-2017-12309 is medium with a severity value of 5.3.
How can an attacker exploit CVE-2017-12309?
An attacker can exploit CVE-2017-12309 by conducting a HTTP response splitting attack.
Which software versions are affected by CVE-2017-12309?
The Cisco Email Security Appliance Firmware versions 10.0.2-020 and 11.0.0-105 are affected by CVE-2017-12309.
How can I fix CVE-2017-12309?
To fix CVE-2017-12309, Cisco recommends upgrading to a fixed software version.
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- version/cisco email security appliance firmware/10.0.2-020
- version/cisco email security appliance firmware/11.0.0-105