Medium severity · published Dec 13, 2017
CVE-2017-17549
Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22…
5.9
CVSS
1.6%
EPSS
No
On KEV
Description
Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22 allow remote attackers to obtain sensitive information from the backend client TLS handshake by leveraging use of TLS with Client Certificates and a Diffie-Hellman Ephemeral (DHE) key exchange.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AD
Application Delivery Controller Firmware · Citrix
10.5; 11.0; 11.1; 12.0 · source: NVD
NG
Netscaler Gateway Firmware · Citrix
10.5; 11.0; 11.1; 12.0 · source: NVD
Affected product
AD
Application Delivery Controller Firmware
Citrix
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-17549
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-17549
Third Party Advisory
http://www.securityfocus.com/bid/102177
Third Party Advisory
http://www.securitytracker.com/id/1040011
Vendor Advisory
https://support.citrix.com/article/ctx230612
More from Application Delivery Controller Firmware
9.8
CVE-2022-27518
Unauthenticated remote arbitrary code execution
9.8
CVE-2019-19781
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability
6.5
CVE-2020-8195
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability
6.5
CVE-2020-8193
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
4.3
CVE-2020-8196
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability