MemProcFS before 5.17 contains multiple unsafe library-loading patterns that enable DLL and shared-library hijacking across six attack surfaces, including bare-name LoadLibraryU and dlopen calls without path qualification for vmmpyc, libMSCompression, and plugin DLLs. An attacker who places a malicious DLL or shared library in the working directory or manipulates LD_LIBRARY_PATH can achieve arbitrary code execution when MemProcFS loads.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Ufrisk Memprocfs
cpe:2.3:a:ufrisk:memprocfs:*:*:*:*:*:*:*:*
|
— |
5.17
|
References 4
https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028…
disclosure@vulncheck.com
https://github.com/ufrisk/MemProcFS/releases/tag/v5.17
disclosure@vulncheck.com
https://mobasi.ai/sentinel
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking
disclosure@vulncheck.com