High severity · published Aug 5, 2021
CVE-2021-22927
A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow an attacker to hijack a session
8.1
CVSS
0.8%
EPSS
No
On KEV
Description
A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow an attacker to hijack a session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
NetScaler ADC · Citrix
12.1 before 12.1-62.27; 13.0 before 13.0-82.45 · source: NVD
AD
Application Delivery Controller Firmware · Citrix
11.1 before 11.1-65.22; 12.1 before 12.1-62.27; 13.0 before 13.0-82.45; 12.1 before 12.1-55.238 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22927
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22927
Vendor Advisory
https://support.citrix.com/article/CTX319135
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