CVE-2016-2563

Putty pscp 0.66 - Stack Buffer Overwrite

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.

Desbordamiento de buffer basado en pila en la utilidad comando-línea de SCP en PuTTY en versiones anteriores a 0.67 y KiTTY 0.66.6.3 y versiones anteriores permite a servidores remotos causar una denegación de servicio (corrupción de memoria de pila) o ejecutar código arbitrario a través de una respuesta de tamño de archivo SCP-SINK a una petición de descarga SCP.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-02-25 CVE Reserved
2016-03-10 First Exploit
2016-03-11 CVE Published
2024-01-29 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (8)

URL	Tag	Source
http://seclists.org/fulldisclosure/2016/Mar/22	Mailing List
http://www.securityfocus.com/bid/84296	Vdb Entry
http://www.securitytracker.com/id/1035257	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/39551	2016-03-10

URL	Date	SRC
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html	2016-12-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html	2016-12-03
https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563	2016-12-03
https://security.gentoo.org/glsa/201606-01	2016-12-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
9bis Search vendor "9bis"		Kitty Search vendor "9bis" for product "Kitty"				<= 0.66.6.3 Search vendor "9bis" for product "Kitty" and version " <= 0.66.6.3"		-		Affected
Simon Tatham Search vendor "Simon Tatham"		Putty Search vendor "Simon Tatham" for product "Putty"				<= 0.66 Search vendor "Simon Tatham" for product "Putty" and version " <= 0.66"		-		Affected