CVE-2021-21425

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Summary

CVECVE-2021-21425
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-04-07 19:15:00 UTC
Updated2022-10-24 20:56:00 UTC
DescriptionGrav Admin Plugin is an HTML user interface that provides a way to configure Grav and create and modify pages. In versions 1.10.7 and earlier, an unauthenticated user can execute some methods of administrator controller without needing any credentials. Particular method execution will result in arbitrary YAML file creation or content change of existing YAML files on the system. Successfully exploitation of that vulnerability results in configuration changes, such as general site information change, custom scheduler job definition, etc. Due to the nature of the vulnerability, an adversary can change some part of the webpage, or hijack an administrator account, or execute operating system command under the context of the web-server user. This vulnerability is fixed in version 1.10.8. Blocking access to the `/admin` path from untrusted sources can be applied as a workaround.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Getgrav Grav-plugin-admin All All All All

References

ReferenceSourceLinkTags
GravCMS 1.10.7 Remote Command Execution ≈ Packet Storm MISC packetstormsecurity.com
GravCMS 1.10.7 Remote Command Execution ≈ Packet Storm MISC packetstormsecurity.com
Unauthenticated Arbitrary YAML Write/Update leads to Code Execution · Advisory · getgrav/grav-plugin-admin · GitHub CONFIRM github.com
Unexpected Journey #7 – GravCMS Unauthenticated Arbitrary YAML Write/Update leads to Code Execution – Pentest Blog MISC pentest.blog
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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