Known exploited vulnerability
CVE-2021-3129
The short answer
CVE-2021-3129 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-09-18: attackers are using it, so patch it first. Fixed versions are published for facade/ignition (2.5.2, 2.4.2, 1.16.14).
What it is
Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Sep 18, 2023
Federal due date Oct 9, 2023
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected packages and fixed versions
| Package | Ecosystem | Fixed in | Advisory |
|---|---|---|---|
| facade/ignition | Packagist | 2.5.2, 2.4.2, 1.16.14, 1.6.15 | GHSA-4qwp-7c67-jmcc |
Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- github.com/facade/ignition/pull/334 PatchThird Party Advisory
- www.ambionics.io/blog/laravel-debug-rce ExploitThird Party Advisory
- github.com/facade/ignition/pull/334 PatchThird Party Advisory
- www.ambionics.io/blog/laravel-debug-rce ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-3129 US Government Resource
Questions
Is CVE-2021-3129 being exploited?
Yes. CISA added CVE-2021-3129 to its Known Exploited Vulnerabilities catalog on 2023-09-18, with a federal remediation due date of 2023-10-09. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2021-3129?
Upgrade to a fixed version: facade/ignition (Packagist) 2.5.2 or 2.4.2 or 1.16.14 or 1.6.15. CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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