Path Traversal in NTP
CVE-2015-7851
Directory traversal vulnerability in the save_config function in ntpd in ntp_control.c in NTP before 4.2.8p4, when used on systems that do not use '\' or '/' characters for directory separation such as OpenVMS, allows remote authenticated users to overwrite arbitrary files.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.039 (90.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- NTP — versions 4.2.8
Weakness classification (CWE)
References
- www.talosintel.com/reports/TALOS-2015-0062/ (Exploit, Third Party Advisory)
- support.ntp.org/bin/view/Main/SecurityNotice (Release Notes, Vendor Advisory)
- support.ntp.org/bin/view/Main/NtpBug2918 (Vendor Advisory)
Frequently asked questions
- What is CVE-2015-7851?
- CVE-2015-7851 is a medium-severity vulnerability in NTP, classified under Path Traversal. CVSS score: 6.5/10. Published 2020-01-28.
- How severe is CVE-2015-7851?
- Medium severity. CVSS v3 base score is 6.5 out of 10.