Detections
Analytics
PuTTY < 0.63 Multiple Vulnerabilities
medium Nessus Network Monitor Plugin ID 6987
Synopsis
The remote host is running a Telnet/SSH client containing multiple potential vulnerabilities.Description
The remote host is using a vulnerable version of PuTTY or of a PuTTY-based software (eg. PSCP or WinSCP). PuTTY is a Telnet/SSH client built for Linux and UNIX variants as well as Microsoft Windows operating systems. Reportedly PuTTY is affected by a buffer overflow (CVE-2013-4207) that could lead to remote code execution, a buffer underflow (CVE-2013-4206) that can corrupt the heap or cause a denial of service condition, and multiple information disclosure vulnerabilities due to its failure to properly clean the private keys typed by the user from memory during authentication.Solution
Upgrade to PuTTY 0.63 or higher.See Also
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped.html
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html
http://seclists.org/oss-sec/2013/q3/291
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
Plugin Details
Severity: Medium
ID: 6987
Family: SSH
Published: 8/12/2013
Updated: 3/6/2019
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 6.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:simon_tatham:putty
Patch Publication Date: 8/6/2013
Vulnerability Publication Date: 8/6/2013
Reference Information
CVE: CVE-2013-4206, CVE-2013-4207, CVE-2013-4208, CVE-2013-4852