CVE-2015-5677

FreeBSD bsnmpd Information Disclosure

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

bsnmpd, as used in FreeBSD 9.3, 10.1, and 10.2, uses world-readable permissions on the snmpd.config file, which allows local users to obtain the secret key for USM authentication by reading the file.

bsnmpd, como se utiliza en FreeBSD 9.3, 10.1 y 10.2, utiliza permisos de lectura universal en el archivo snmpd.config, lo que permite a usuarios locales obtener la clave secreta para autenticación USM leyendo el archivo.

The SNMP protocol supports an authentication model called USM, which relies on a shared secret. The default permission of the bsnmpd configuration file, /etc/bsnmpd.conf, is weak and does not provide adequate protection against local unprivileged users. A local user may be able to read the shared secret, if configured and used by the system administrator.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-26 CVE Reserved
2016-01-15 CVE Published
2016-01-16 First Exploit
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (4)

URL	Tag	Source
http://www.securitytracker.com/id/1034678	Vdb Entry

URL	Date	SRC
https://packetstorm.news/files/id/135296	2016-01-16
https://pierrekim.github.io/blog/2016-01-15-cve-2015-5677-freebsd-bsnmpd.html	2024-08-06

URL	Date	SRC
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:06.bsnmpd.asc	2017-09-10

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				9.3 Search vendor "Freebsd" for product "Freebsd" and version "9.3"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				10.1 Search vendor "Freebsd" for product "Freebsd" and version "10.1"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				10.2 Search vendor "Freebsd" for product "Freebsd" and version "10.2"		-		Affected