CVE-2016-2056

Xymon 4.3.25 - useradm Command Execution

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.

xymond en Xymon 4.1.x, 4.2.x y 4.3.x en versiones anteriores a 4.3.25 permite a usuarios remotos autenticados ejecutar comandos arbitrarios a través de metacaracteres shell en el argumento adduser_name en (1) web/useradm.c o (2) web/chpasswd.c.

Xymon 4.3.x versions suffers from buffer overflow, information disclosure, code execution, cross site scripting, and various other vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-01-25 CVE Reserved
2016-02-15 CVE Published
2019-07-12 First Exploit
2024-08-05 CVE Updated
2024-09-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CAPEC

References (9)

URL	Tag	Source
http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html	X_refsource_misc
http://packetstormsecurity.com/files/153620/Xymon-useradm-Command-Execution.html	X_refsource_misc
http://www.securityfocus.com/archive/1/537522/100/0/threaded	Mailing List
https://lists.xymon.com/pipermail/xymon/2016-February/042986.html
https://www.securityfocus.com/archive/1/537522/100/0/threaded
https://www.debian.org/security/2016/dsa-3495

URL	Date	SRC
https://www.exploit-db.com/exploits/47114	2019-07-12

URL	Date	SRC
https://sourceforge.net/p/xymon/code/7892	2016-02-14

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3495	2018-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.1.0 Search vendor "Xymon" for product "Xymon" and version "4.1.0"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.1.1 Search vendor "Xymon" for product "Xymon" and version "4.1.1"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.1.2 Search vendor "Xymon" for product "Xymon" and version "4.1.2"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.1.2 Search vendor "Xymon" for product "Xymon" and version "4.1.2"		p1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.1.2 Search vendor "Xymon" for product "Xymon" and version "4.1.2"		p2		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2 Search vendor "Xymon" for product "Xymon" and version "4.2"		alfa		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2 Search vendor "Xymon" for product "Xymon" and version "4.2"		beta20060605		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2 Search vendor "Xymon" for product "Xymon" and version "4.2"		rc20060712		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2.0 Search vendor "Xymon" for product "Xymon" and version "4.2.0"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2.2 Search vendor "Xymon" for product "Xymon" and version "4.2.2"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2.2 Search vendor "Xymon" for product "Xymon" and version "4.2.2"		rc1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2.3 Search vendor "Xymon" for product "Xymon" and version "4.2.3"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.2.3 Search vendor "Xymon" for product "Xymon" and version "4.2.3"		rc1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.0 Search vendor "Xymon" for product "Xymon" and version "4.3.0"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.0 Search vendor "Xymon" for product "Xymon" and version "4.3.0"		beta1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.0 Search vendor "Xymon" for product "Xymon" and version "4.3.0"		beta2		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.0 Search vendor "Xymon" for product "Xymon" and version "4.3.0"		beta3		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.0 Search vendor "Xymon" for product "Xymon" and version "4.3.0"		rc1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.1 Search vendor "Xymon" for product "Xymon" and version "4.3.1"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.2 Search vendor "Xymon" for product "Xymon" and version "4.3.2"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.3 Search vendor "Xymon" for product "Xymon" and version "4.3.3"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.4 Search vendor "Xymon" for product "Xymon" and version "4.3.4"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.5 Search vendor "Xymon" for product "Xymon" and version "4.3.5"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.6 Search vendor "Xymon" for product "Xymon" and version "4.3.6"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.7 Search vendor "Xymon" for product "Xymon" and version "4.3.7"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.8 Search vendor "Xymon" for product "Xymon" and version "4.3.8"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.9 Search vendor "Xymon" for product "Xymon" and version "4.3.9"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.10 Search vendor "Xymon" for product "Xymon" and version "4.3.10"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.11 Search vendor "Xymon" for product "Xymon" and version "4.3.11"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.12 Search vendor "Xymon" for product "Xymon" and version "4.3.12"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.13 Search vendor "Xymon" for product "Xymon" and version "4.3.13"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.14 Search vendor "Xymon" for product "Xymon" and version "4.3.14"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.15 Search vendor "Xymon" for product "Xymon" and version "4.3.15"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.16 Search vendor "Xymon" for product "Xymon" and version "4.3.16"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.17 Search vendor "Xymon" for product "Xymon" and version "4.3.17"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.18 Search vendor "Xymon" for product "Xymon" and version "4.3.18"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.19 Search vendor "Xymon" for product "Xymon" and version "4.3.19"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.19 Search vendor "Xymon" for product "Xymon" and version "4.3.19"		rc1		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.20 Search vendor "Xymon" for product "Xymon" and version "4.3.20"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.21 Search vendor "Xymon" for product "Xymon" and version "4.3.21"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.22 Search vendor "Xymon" for product "Xymon" and version "4.3.22"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.23 Search vendor "Xymon" for product "Xymon" and version "4.3.23"		-		Affected
Xymon Search vendor "Xymon"		Xymon Search vendor "Xymon" for product "Xymon"				4.3.24 Search vendor "Xymon" for product "Xymon" and version "4.3.24"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected