Service interruption via unbounded proxy response buffering
Published Oct 13, 2023 · Updated Sep 17, 2024
Resource exhaustion in Vrite before 0.3.0 allows remote attackers to interrupt the service through the image proxy endpoint. The /proxy route passes an attacker-selected URL to axios.get and buffers the complete response as an array buffer before checking its content type, without a response-size limit. A request must pass the route's Origin check; repeated or oversized responses can exhaust memory and crash or hang the application.
Summary
What happened
Resource exhaustion in Vrite before 0.3.0 allows remote attackers to interrupt the service through the image proxy endpoint. The /proxy route passes an attacker-selected URL to axios.get and buffers the complete response as an array buffer before checking its content type, without a response-size limit. A request must pass the route's Origin check; repeated or oversized responses can exhaust memory and crash or hang the application.
The record
- CVE
- CVE-2023-5573
- Published
- Oct 13, 2023
- Updated
- Sep 17, 2024
- Vendor
- Vrite
- Product
- Vrite
- Classifications
- CWE-770, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2023CVE publishedPublication date reported by the CVE source.
- Sep 17, 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=unspecified <0.3.0
What conditions does exploitation require?
What is affected?
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
- huntr.dev proof-of-concept for CVE-2023-5573proof of concept · demonstrated
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Technologies
Your stack
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Your stack
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