Server-Side Request Forgery (SSRF) Affecting curl package, versions <7.83.1-r0
Snyk CVSS
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Test your applications- Snyk ID SNYK-ALPINE316-CURL-2842187
- published 24 May 2022
- disclosed 2 Jun 2022
Introduced: 24 May 2022
CVE-2022-27780 Open this link in a new tabHow to fix?
Upgrade Alpine:3.16 curl to version 7.83.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine.
See How to fix? for Alpine:3.16 relevant fixed versions and status.
The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a different URL usingthe wrong host name when it is later retrieved.For example, a URL like http://example.com%2F127.0.0.1/, would be allowed bythe parser and get transposed into http://example.com/127.0.0.1/. This flawcan be used to circumvent filters, checks and more.