What is the CVSS score of CVE-2018-12257?

CVE-2018-12257 has a CVSS 3.0 base score of 4.4 (Medium). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2018-12257?

Yes, a public proof-of-concept exploit is available for CVE-2018-12257. Prioritise patching immediately. EPSS: 0.4%.

Momentum Axel 720P Firmware CVE-2018-12257

MEDIUM

Improper Certificate Validation (CWE-295)

2018-06-12 cve@mitre.org

Information Disclosure Momentum Axel 720P Firmware

4.4

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

4.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Jun 12, 2018 - 18:29 nvd

MEDIUM 4.4

DescriptionNVD

An issue was discovered on Momentum Axel 720P 5.1.8 devices. There is Authenticated Custom Firmware Upgrade via DNS Hijacking. An authenticated root user with CLI access is able to remotely upgrade firmware to a custom image due to lack of SSL validation by changing the nameservers in /etc/resolv.conf to the attacker's server, and serving the expected HTTPS response containing new firmware for the device to download.

AnalysisAI

An issue was discovered on Momentum Axel 720P 5.1.8 devices. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-295. An issue was discovered on Momentum Axel 720P 5.1.8 devices. There is Authenticated Custom Firmware Upgrade via DNS Hijacking. An authenticated root user with CLI access is able to remotely upgrade firmware to a custom image due to lack of SSL validation by changing the nameservers in /etc/resolv.conf to the attacker's server, and serving the expected HTTPS response containing new firmware for the device to download. Affected products include: Apollotechnologiesinc Momentum Axel 720P 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.