Vulnerability in F-Secure Xfence
CVE-2018-10403
An issue was discovered in F-Secure XFENCE and Little Flocker. A maliciously crafted Universal/fat binary can evade third-party code signing checks. By not completing full inspection of the Universal/fat binary, the user of the third-party tool will believe that the code is signed by Apple, but the malicious unsigned code will execute.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.okta.com/security-blog/2018/06/issues-around-third-party-apple-code-signing… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-10403?
- CVE-2018-10403 is a high-severity vulnerability in F-Secure Xfence, classified under Improper Certificate Validation. CVSS score: 7.8/10. Published 2018-06-13.
- How severe is CVE-2018-10403?
- High severity. CVSS v3 base score is 7.8 out of 10.