Discover the impact of CVE-2017-12309, a vulnerability in Cisco Email Security Appliance allowing attackers to execute harmful activities. Learn mitigation steps and patching advice.
A security flaw was discovered in the Cisco Email Security Appliance (ESA) that could allow an unauthenticated remote attacker to execute a HTTP response splitting attack.
Understanding CVE-2017-12309
This CVE identifies a vulnerability in the Cisco Email Security Appliance that could be exploited by attackers to carry out various malicious activities.
What is CVE-2017-12309?
The vulnerability in the Cisco Email Security Appliance allows attackers to manipulate HTTP responses, potentially leading to cross-site scripting attacks and other harmful activities.
The Impact of CVE-2017-12309
Exploiting this flaw could enable attackers to execute cross-site scripting attacks, cross-user defacement, web cache poisoning, and similar malicious activities.
Technical Details of CVE-2017-12309
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw in the Cisco Email Security Appliance arises from inadequate input value cleansing, allowing attackers to insert harmful HTTP headers and manipulate response bodies.
Affected Systems and Versions
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious HTTP headers, controlling response bodies, or splitting responses into multiple parts.
Mitigation and Prevention
Protecting systems from CVE-2017-12309 requires immediate actions and long-term security practices.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates