CVE-2021-47942
HighSummary
Home Assistant Community Store (HACS) prior to 1.10.0 contains a path traversal vulnerability that allows unauthenticated attackers to read sensitive files by traversing directories via the /hacsfiles/ endpoint. Attackers can retrieve the .storage/auth file containing user credentials and refresh tokens.
Risk Assessment
This vulnerability poses a risk of attackers gaining administrative access to Home Assistant instances, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to update HACS to version 1.10.0 or later to mitigate this vulnerability. Additionally, conducting a security audit to identify potential threats is advisable.
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Original NVD description (English source)
Home Assistant Community Store (HACS) prior to 1.10.0 contains a path traversal vulnerability that allows unauthenticated attackers to read sensitive files by traversing directories via the /hacsfiles/ endpoint. Attackers can retrieve the .storage/auth file containing user credentials and refresh tokens, then craft valid JWT tokens to gain administrative access to Home Assistant instances.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

