Vulnerability in Hyper Runv
CVE-2018-9862
util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a "docker exec" command with that value in the -u argument, a similar issue to CVE-2016-3697.
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 (34.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% 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
- Hyper Runv — versions 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/103738 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- github.com/hyperhq/hyperstart/pull/348 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-9862?
- CVE-2018-9862 is a high-severity vulnerability in Hyper Runv, classified under CWE-838. CVSS score: 7.8/10. Published 2018-04-09.
- How severe is CVE-2018-9862?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-9862 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.