Medium severity · published Sep 23, 2021
CVE-2021-21993
The vCenter Server contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in vCenter Server Content Library
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
The vCenter Server contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in vCenter Server Content Library. An authorised user with access to content library may exploit this issue by sending a POST request to vCenter Server leading to information disclosure.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VS
vCenter Server · VMware
6.5; 6.7; 7.0 · source: NVD
CF
Cloud Foundation · Vmware
3.0 before 5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21993
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21993
Patch
https://www.vmware.com/security/advisories/VMSA-2021-0020.html
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