What is the CVSS score of CVE-2018-18567?

CVE-2018-18567 has a CVSS 3.0 base score of 5.9 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.2%.

Is there a public PoC exploit available for CVE-2018-18567?

Yes, a public proof-of-concept exploit is available for CVE-2018-18567. Prioritise patching immediately. EPSS: 1.2%.

440Hd Firmware CVE-2018-18567

MEDIUM

Improper Certificate Validation (CWE-295)

2018-10-24 cve@mitre.org

Information Disclosure 440Hd Firmware 450Hd Firmware

5.9

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

5.9 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Oct 24, 2018 - 22:29 nvd

MEDIUM 5.9

DescriptionNVD

AnalysisAI

AudioCodes 440HD and 450HD devices 3.1.2.89 and earlier allows man-in-the-middle attackers to obtain sensitive credential information by leveraging failure to validate X.509 certificates when used. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-295. AudioCodes 440HD and 450HD devices 3.1.2.89 and earlier allows man-in-the-middle attackers to obtain sensitive credential information by leveraging failure to validate X.509 certificates when used with an on-premise installation with Skype for Business. Affected products include: Audiocodes 440Hd Firmware, Audiocodes 450Hd Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.