Information disclosure via non-HTTPOnly preference cookie
Published May 5, 2021 · Updated Aug 3, 2024
Improper cookie protection in BTCPay Server 1.0.7.0 and earlier allows remote attackers to read sensitive preference-cookie data. The server creates a cookie containing user preferences, including invoice-page search strings, without the HTTPOnly attribute, exposing its value to JavaScript. Exploitation requires JavaScript execution in the cookie's browser context, and the reported consequence is limited to information stored in that preference cookie.
Summary
What happened
Improper cookie protection in BTCPay Server 1.0.7.0 and earlier allows remote attackers to read sensitive preference-cookie data. The server creates a cookie containing user preferences, including invoice-page search strings, without the HTTPOnly attribute, exposing its value to JavaScript. Exploitation requires JavaScript execution in the cookie's browser context, and the reported consequence is limited to information stored in that preference cookie.
The record
- CVE
- CVE-2021-29247
- Published
- May 5, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-732
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 5, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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