CVE-2018-16156
One of these message processing functions attempts to dynamically load the UninOldIS.dll library and executes an exported function named ChangeUninstallString.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In PaperStream IP (TWAIN) 1.42.0.5685 (Service Update 7), the FJTWSVIC service running with SYSTEM privilege processes unauthenticated messages received over the FjtwMkic_Fjicube_32 named pipe. One of these message processing functions attempts to dynamically load the UninOldIS.dll library and executes an exported function named ChangeUninstallString. The default install does not contain this library and therefore if any DLL with that name exists in any directory listed in the PATH variable, it can be used to escalate to SYSTEM level privilege.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.56% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-426
- Affected
- fujitsu/paperstream ip \(twain\)
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/160832/PaperStream-IP-TWAIN-1.42.0.5685-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://www.securifera.com/advisories/cve-2018-16156/Third Party Advisory
- http://packetstormsecurity.com/files/160832/PaperStream-IP-TWAIN-1.42.0.5685-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://www.securifera.com/advisories/cve-2018-16156/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.