CVE-2020-8159

Description

There is a vulnerability in actionpack_page-caching gem < v1.2.1 that allows an attacker to write arbitrary files to a web server, potentially resulting in remote code execution if the attacker can write unescaped ERB to a view.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.42% Top 15%
Third-Party Advisory debian.org
Affected: n/a https://github.com/rails/actionpack-page_caching
Published at:
Updated at:

References

Link Tags
https://groups.google.com/forum/#%21topic/rubyonrails-security/CFRVkEytdP8
https://lists.debian.org/debian-lts-announce/2021/07/msg00019.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-8159?
CVE-2020-8159 has been scored as a critical severity vulnerability.
How to fix CVE-2020-8159?
To fix CVE-2020-8159, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8159 being actively exploited in the wild?
It is possible that CVE-2020-8159 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8159?
CVE-2020-8159 affects n/a https://github.com/rails/actionpack-page_caching.
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