SARA / Free Tools / CVE / CVE-2019-5420

CVE-2019-5420 — A remote code execution vulnerability in development mode Rails <5

A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token. This secret token can be used in combination with other Rails internals to escalate to a remote c

CVSS
— —
EPSS
89.33% (top 0.20%)
CWE
CWE-77
Published
2019-03-27T13:48:13.000Z
Last modified
2024-08-04T19:54:53.584Z
CVSS vector
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01What is this vulnerability?

A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token. This secret token can be used in combination with other Rails internals to escalate to a remote code execution exploit.

02Affected products

VendorProductVersions
Railshttps://github.com/rails/rails5.2.2.1, 6.0.0.beta3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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