Input validation error in mosquitto (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-12551 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
mosquitto (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU17467
Risk: Low
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-12551
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass password authentication.
The vulnerability exists due to insufficient validation of malformed input in a password file, when it is used for authentication. Incorrect data in password file will be treated by the application as a username with empty password, allowing attacker to gain unauthorized access to the application.
Install update from vendor's website.
Vulnerable software versionsmosquitto (Alpine package): 1.2.3-r0 - 1.4.15-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=cdf3e55bbad03e4036a926c6ec33aae93e695537
http://git.alpinelinux.org/aports/commit/?id=231048d9b3314a33f93647991dc803fdf5cc7ff7
http://git.alpinelinux.org/aports/commit/?id=0615c8c70a2ec6b20460291a2755e9e36f393205
http://git.alpinelinux.org/aports/commit/?id=c000685cbe12c9f51e9d651aff660e8b3ebc8f70
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
