What is the CVSS score of CVE-2023-31477?

CVE-2023-31477 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2023-31477?

Yes, a public proof-of-concept exploit is available for CVE-2023-31477. Prioritise patching immediately. EPSS: 0.9%.

Gl S20 Firmware CVE-2023-31477

HIGH

Path Traversal (CWE-22)

2023-05-11 cve@mitre.org

Path Traversal Gl S20 Firmware Gl X3000 Firmware Gl Mt3000 Firmware Gl Mt2500 Firmware Gl Mt2500A Firmware Gl Axt1800 Firmware Gl A1300 Firmware Gl Ax1800 Firmware Gl Sft1200 Firmware Gl Mt1300 Firmware Gl E750 Firmware Gl Mv1000 Firmware Gl Mv1000W Firmware Gl S10 Firmware Gl S200 Firmware Gl S1300 Firmware Gl Sf1200 Firmware Gl B1300 Firmware Gl B2200 Firmware Gl Ap1300 Firmware Gl Ap1300Lte Firmware Gl X1200 Firmware Gl X750 Firmware Gl X300B Firmware Gl Xe300 Firmware Gl Ar750S Firmware Gl Ar750 Firmware Gl Mifi Firmware Gl Mt300N V2 Firmware Gl Ar300M Firmware Gl Usb150 Firmware Microuter N300 Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

May 11, 2023 - 02:15 nvd

HIGH 7.5

DescriptionNVD

A path traversal issue was discovered on GL.iNet devices before 3.216. Through the file sharing feature, it is possible to share an arbitrary directory, such as /tmp or /etc, because there is no server-side restriction to limit sharing to the USB path.

AnalysisAI

A path traversal issue was discovered on GL.iNet devices before 3.216. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. A path traversal issue was discovered on GL.iNet devices before 3.216. Through the file sharing feature, it is possible to share an arbitrary directory, such as /tmp or /etc, because there is no server-side restriction to limit sharing to the USB path. Affected products include: Gl-Inet Gl-S20 Firmware, Gl-Inet Gl-X3000 Firmware, Gl-Inet Gl-Mt3000 Firmware, Gl-Inet Gl-Mt2500 Firmware, Gl-Inet Gl-Mt2500A Firmware. Version information: before 3.216..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.