SB2017121217 - Information disclosure in Citrix NetScaler
Published: December 12, 2017
Security Bulletin ID
SB2017121217
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2017-17549)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: 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/E:U/U:Clear
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.
Remediation
Install update from vendor's website.