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CVE-2023-31473

Public exploit available. Not confirmed exploited in the wild yet. Fixed in 3.216.

CVSS 3.14.9MediumEPSS percentile90th3.9% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
Public exploit: 1 sourceFix3.216Upgrade to this build

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Gl-inet Gl-s20 FirmwareAffected: < 3.216Upgrade to: 3.216Stated by: NVD
  • Gl-inet Gl-x3000 FirmwareAffected: < 3.216Upgrade to: 3.216Stated by: NVD
  • Gl-inet Gl-mt3000 FirmwareAffected: < 3.216Upgrade to: 3.216Stated by: NVD
  • Gl-inet Gl-mt2500 FirmwareAffected: < 3.216Upgrade to: 3.216Stated by: NVD
  • Gl-inet Gl-mt2500a FirmwareAffected: < 3.216Upgrade to: 3.216Stated by: NVD

Versions as the sources state them. 27 more products have version data. Full version matrix after sign-in

Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

An issue was discovered on GL.iNet devices before 3.216. There is an arbitrary file write in which an empty file can be created anywhere on the filesystem. This is caused by a command injection vulnerability with a filter applied. Through the software installation feature, it is possible to inject arbitrary parameters in a request to cause opkg to read an arbitrary file name while using root privileges. The -f option can be used with a configuration file.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS90th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

3.9% chance of exploitation activity in the next 30 days, which ranks it in the 90th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

The patch came 403 days before any public exploit.

  1. Public exploit / PoCsource: github-poc
  2. Patch availablerecord updated
  3. Publishedweakness classified, att&ck mapped

Affected products

And 25 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 4.9 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required HighRequires admin or elevated privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

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We'll flag the next CVE, public exploit or patch for Gl-s20 Firmware, not every advisory. This one: public exploit.