Vulnerability Name:

CVE-2017-7650 (CCN-131747)

Assigned:2017-04-11
Published:2017-04-11
Updated:2019-10-03
Summary:In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-287
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2017-7650

Source: CCN
Type: Mosquito Security Advisory
CVE-2017-7650

Source: CONFIRM
Type: Patch, Vendor Advisory
http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/

Source: DEBIAN
Type: Third Party Advisory
DSA-3865

Source: BID
Type: Third Party Advisory, VDB Entry
98741

Source: CCN
Type: BID-98741
Mosquitto CVE-2017-7650 Security Bypass Vulnerability

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765

Source: XF
Type: UNKNOWN
mosquitto-cve20177650-sec-bypass(131747)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:eclipse:mosquitto:*:*:*:*:*:*:*:* (Version < 1.4.12)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:eclipse:mosquitto:1.4.11:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112700
    P
    		libmosquitto1-2.0.11-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106176
    P
    		libmosquitto1-2.0.11-1.2 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.trusty:def:20177650000
    V
    		CVE-2017-7650 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-09-11
    oval:com.ubuntu.xenial:def:20177650000
    V
    		CVE-2017-7650 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-11
    oval:com.ubuntu.xenial:def:201776500000000
    V
    		CVE-2017-7650 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-11
    BACK
    eclipse mosquitto *
    debian debian linux 8.0
    eclipse mosquitto 1.4.11