CVE-2018-18435
KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.38% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- kioware/kioware server
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md
- https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_updatePatch, Vendor Advisory
- https://www.exploit-db.com/exploits/46093/Exploit, Third Party Advisory, VDB Entry
- https://www.kioware.com/patch.aspxPatch, Vendor Advisory
- http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md
- https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_updatePatch, Vendor Advisory
- https://www.exploit-db.com/exploits/46093/Exploit, Third Party Advisory, VDB Entry
- https://www.kioware.com/patch.aspxPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.