CVE-2015-7851

MEDIUM EPSS 89.1%
Published Jan 28, 20206y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jan 28, 2020 6y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
89.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 18

VendorProductVersionRange
ntpntp*≥4.2.0  –  <4.2.8
ntpntp*≥4.3.0  –  <4.3.77
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any
ntpntp4.2.8any

References 3

  • support.ntp.org http://support.ntp.org/bin/view/Main/NtpBug2918
    Vendor Advisory
  • support.ntp.org http://support.ntp.org/bin/view/Main/SecurityNotice
    Release NotesVendor Advisory
  • talosintel.com http://www.talosintel.com/reports/TALOS-2015-0062/
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.