Image disclosure and account takeover via URL fetch
Published Apr 19, 2024 · Updated Aug 2, 2024
SSRF and reflected XSS in Memos before 0.22.0 allow remote attackers to retrieve internal images and compromise an account via a crafted image URL. The public /o/get/image handler accepts a URL query value, fetches that destination without restricting internal addresses, and writes the returned media type and body directly to its response. No authentication is required for the fetch; account compromise requires a signed-in victim to open a link that returns attacker-controlled SVG script.
Summary
What happened
SSRF and reflected XSS in Memos before 0.22.0 allow remote attackers to retrieve internal images and compromise an account via a crafted image URL. The public /o/get/image handler accepts a URL query value, fetches that destination without restricting internal addresses, and writes the returned media type and body directly to its response. No authentication is required for the fetch; account compromise requires a signed-in victim to open a link that returns attacker-controlled SVG script.
The record
- CVE
- CVE-2024-29029
- Published
- Apr 19, 2024
- Updated
- Aug 2, 2024
- Vendor
- Memos
- Product
- Memos
- Classifications
- CWE-79, CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 19, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.13.2
- Affected versionversion=< 0.22.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- GitHub Security Lab SSRF and XSS proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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