Directory Traversal Affecting curl package, versions <7.88.1-6ubuntu2
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Test your applications- Snyk ID SNYK-UBUNTU2304-CURL-5462513
- published 20 Mar 2023
- disclosed 30 Mar 2023
Introduced: 20 Mar 2023
CVE-2023-27534 Open this link in a new tabHow to fix?
Upgrade Ubuntu:23.04 curl to version 7.88.1-6ubuntu2 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 Ubuntu.
See How to fix? for Ubuntu:23.04 relevant fixed versions and status.
A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde () character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /2/foo while accessing a server with a specific user.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2023-27534
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
- https://hackerone.com/reports/1892351
- https://lists.debian.org/debian-lts-announce/2024/03/msg00016.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
- https://security.gentoo.org/glsa/202310-12
- https://security.netapp.com/advisory/ntap-20230420-0012/