Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.
Published 2021-09-23 13:15:08
Updated 2025-01-29 18:15:40
Source VMware
View at NVD,   CVE.org

Products affected by CVE-2021-22017

CVE-2021-22017 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
VMware vCenter Server Improper Access Control
CISA required action:
Apply updates per vendor instructions.
CISA description:
Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-22017
Added on 2022-01-10 Action due date 2022-01-24

Exploit prediction scoring system (EPSS) score for CVE-2021-22017

6.21%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-22017

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST
5.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.9
1.4
134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-01-29
5.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.9
1.4
NIST

References for CVE-2021-22017

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