Medium severity · published Sep 24, 2021
CVE-2021-31923
Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PI
Pingaccess · Pingidentity
before 5.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31923
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31923
docs.pingidentity.com
https://docs.pingidentity.com/bundle/pingaccess-53/page/wco1629833104567.html
More from Pingaccess
8.8
CVE-2024-23316
PingAccess HTTP Request Desynchronization Weakness
5.8
CVE-2024-23983
Access rules for PingAccess may be circumvented with URL-encoded characters