Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. By bypassing authentication (i.e., not having an authtoken), an attacker can upload arbitrary files to the system, leading to directory traversal and remote code execution. NOTE: this issue exists because of an incomplete fix for CVE-2022-27925.
Published 2022-08-12 15:15:16
Updated 2022-10-28 13:38:43
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Directory traversalExecute codeBypassGain privilege

CVE-2022-37042 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Zimbra Collaboration (ZCS) Authentication Bypass Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Zimbra Collaboration (ZCS) contains an authentication bypass vulnerability in MailboxImportServlet. This vulnerability was chained with CVE-2022-27925 which allows for unauthenticated remote code execution.
Added on 2022-08-11 Action due date 2022-09-01

Exploit prediction scoring system (EPSS) score for CVE-2022-37042

Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2022-37042

  • Zip Path Traversal in Zimbra (mboximport) (CVE-2022-27925)
    Disclosure Date: 2022-05-10
    First seen: 2022-12-23
    This module POSTs a ZIP file containing path traversal characters to the administrator interface for Zimbra Collaboration Suite. If successful, it plants a JSP-based backdoor within the web directory, then executes it. The core vulnerability is a p

CVSS scores for CVE-2022-37042

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

CWE ids for CVE-2022-37042

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-37042

Products affected by CVE-2022-37042

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