CVE-2021-45887 — CRITICAL (9.8)

Vulnerability Description

An issue was discovered in PONTON X/P Messenger before 3.11.2. Due to path traversal in private/SchemaSetUpload.do for uploaded ZIP files, an executable script can be uploaded by web application administrators, giving the attacker remote code execution on the underlying server via an imgs/*.jsp URI.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ponton	X\/P Messenger	3.8.0

Related Weaknesses (CWE)

CWE-22

References

https://www.ponton.de/products/xpmessenger/ProductVendor Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-077.tExploitThird Party Advisory
https://www.ponton.de/products/xpmessenger/ProductVendor Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-077.tExploitThird Party Advisory

FAQ

What is CVE-2021-45887?

CVE-2021-45887 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in PONTON X/P Messenger before 3.11.2. Due to path traversal in private/SchemaSetUpload.do for uploaded ZIP files, an executable script can be uploaded by web application admin...

How severe is CVE-2021-45887?

CVE-2021-45887 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-45887?

Check the references section above for vendor advisories and patch information. Affected products include: Ponton X\/P Messenger.