SSRF filter bypass via cross-protocol redirects
Published Mar 16, 2023 · Updated Aug 2, 2024
SSRF in Request through 2.88.2 and @cypress/request before 3.0.0 allows remote attackers to reach restricted hosts via redirects. On an HTTP-to-HTTPS or HTTPS-to-HTTP redirect, lib/redirect.js deletes the configured agent, discarding its connection listeners and anti-SSRF filtering. Exploitation requires a consuming application to accept an attacker-influenced URL and follow a redirect from an attacker-controlled server, exposing internal services otherwise blocked by the filter.
Summary
What happened
SSRF in Request through 2.88.2 and @cypress/request before 3.0.0 allows remote attackers to reach restricted hosts via redirects. On an HTTP-to-HTTPS or HTTPS-to-HTTP redirect, lib/redirect.js deletes the configured agent, discarding its connection listeners and anti-SSRF filtering. Exploitation requires a consuming application to accept an attacker-influenced URL and follow a redirect from an attacker-controlled server, exposing internal services otherwise blocked by the filter.
The record
- CVE
- CVE-2023-28155
- Published
- Mar 16, 2023
- Updated
- Aug 2, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-918
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 16, 2023CVE 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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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Doyensec Request SSRF reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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