OpenDocMan 2.4.0 through 2.10.0 contains a decompression bomb vulnerability that allows authenticated users to exhaust PHP memory by uploading crafted office documents. Attackers can upload a small ODT, DOCX, or XLSX file whose XML entries decompress to hundreds of megabytes, crashing PHP workers and degrading availability.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/opendocman/opendocman
disclosure@vulncheck.com
https://github.com/opendocman/opendocman/blob/641f0a6f8eeba902e309978ec04291c44…
disclosure@vulncheck.com
https://github.com/opendocman/opendocman/blob/641f0a6f8eeba902e309978ec04291c44…
disclosure@vulncheck.com
https://hackmd.io/@haind03/opendocman-office-document-decompression-dos
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/opendocman-2.4.0-through-2.10.0-decompress…
disclosure@vulncheck.com