Information disclosure in Citrix NetScaler - CVE-2017-17549
Published: December 19, 2017
Vulnerability identifier: #VU9683
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-17549
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists on systems using TLS with client certificates enabled and Diffie-Hellman Ephemeral (DHE) key exchange due to unspecified error. A remote attacker can obtain cleartext traffic from the backend client TLS handshake.
The weakness exists on systems using TLS with client certificates enabled and Diffie-Hellman Ephemeral (DHE) key exchange due to unspecified error. A remote attacker can obtain cleartext traffic from the backend client TLS handshake.
Affected software
Citrix NetScaler
How to mitigate CVE-2017-17549
Update to version 10.5 build 67.13, 11.0 build 71.22, 11.1 build 56.19, 12.0 build 53.22 or later.