Vulnerability in Heimdalsecurity Heimdal
CVE-2018-5349
A vulnerability has been found in Heimdal PRO v2.2.190, but it is most likely also present in Heimdal FREE and Heimdal CORP. Faulty permissions on the directory "C:\ProgramData\Heimdal Security\Heimdal Agent" allow BUILTIN\Users to write new files to the directory. On startup, the process Heimdal.MonitorServices.exe running as SYSTEM will attempt to load version.dll from this directory. Placing a malicious version.dll in this directory will result in privilege escalation. NOTE: any affected Heimdal products are completely unrelated to the Heimdal vendor of a Kerberos 5 product on the h5l.org web site.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Heimdalsecurity Heimdal — versions 2.2.190
Weakness classification (CWE)
References
- improsec.com/blog/heimdal-advisory-1 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5349?
- CVE-2018-5349 is a high-severity vulnerability in Heimdalsecurity Heimdal, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2018-03-22.
- How severe is CVE-2018-5349?
- High severity. CVSS v3 base score is 7.8 out of 10.