Vulnerability Name:

CVE-2019-17067 (CCN-168222)

Assigned:2019-09-29
Published:2019-09-29
Updated:2019-11-27
Summary:PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-770
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2019-17067

Source: XF
Type: UNKNOWN
putty-cve201917067-info-disclosure(168222)

Source: CCN
Type: PuTTY-announce Mailing List, Sun Sep 29 16:19:14 BST 2019
PuTTY 0.73 is released

Source: MISC
Type: Mailing List, Third Party Advisory
https://lists.tartarus.org/pipermail/putty-announce/2019/000029.html

Source: CONFIRM
Type: UNKNOWN
https://security.netapp.com/advisory/ntap-20191127-0003/

Source: CCN
Type: PuTTY Web site
PuTTY

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-17067

Vulnerable Configuration:Configuration 1:
  • cpe:/a:putty:putty:*:*:*:*:*:*:*:* (Version < 0.73)
  • AND
  • cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:putty:putty:0.72:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019170670000000
    V
    		CVE-2019-17067 on Ubuntu 19.04 (disco) - medium.
    2019-10-01
    oval:com.ubuntu.bionic:def:2019170670000000
    V
    		CVE-2019-17067 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-01
    oval:com.ubuntu.xenial:def:2019170670000000
    V
    		CVE-2019-17067 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-01
    BACK
    putty putty *
    microsoft windows -
    putty putty 0.72