CVE-2022-27228
Published: 22 March 2022
Summary
CVE-2022-27228 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Bitrix24 Bitrix24. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability is an instance of improper input validation (CWE-20) in the vote module, also known as "Polls, Votes," of Bitrix Site Manager. Versions prior to 21.0.100 are affected, and the flaw permits remote code execution with a CVSS 3.1 base score of 9.8.
A remote attacker with no authentication or user interaction can send crafted requests over the network to the affected module and execute arbitrary code, resulting in full confidentiality, integrity, and availability impact on the target system.
The vendor advisory at https://helpdesk.bitrix24.com/open/15536776/ addresses the issue by releasing version 21.0.100 of the module; administrators should apply the update to eliminate the exposure.
The associated EPSS score stands at 0.9239, indicating substantial exploitation interest after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31737
Vulnerability details
In the vote (aka "Polls, Votes") module before 21.0.100 of Bitrix Site Manager, a remote unauthenticated attacker can execute arbitrary code.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.
Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.
Directly implements checks on information inputs to reject invalid data before processing.
Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.