Vulnerability Name:

CCN-123496

Published:2017-03-21
Updated:2017-03-21
Summary:OpenSSH could allow a remote authenticated attacker to traverse directories on the system. An attacker could send a specially-crafted URL request to the sftp-client on Cygwin containing directory traversal sequences to create or modify files outside of the target directory.
CVSS v3 Severity:4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: OpenSSH Web site
Changes since OpenSSH 7.4

Source: XF
Type: UNKNOWN
openssh-sftpclient-dir-trav(123496)

Source: CCN
Type: Packet Storm Security [03-22-2017]
OpenSSH On Cygwin SFTP Client Directory Traversal

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:openbsd:openssh:7.4:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    openbsd openssh 7.4