Date: Tue, 17 Jan 2023 16:01:11 +0000 From: Jeremy Stanley <fungi@...goth.org> To: oss-security@...ts.openwall.com Subject: [OSSA-2023-001] Swift: Arbitrary file access through custom S3 XML entities (CVE-2022-47950) =================================================================== OSSA-2023-001: Arbitrary file access through custom S3 XML entities =================================================================== :Date: January 17, 2023 :CVE: CVE-2022-47950 Affects ~~~~~~~ - Swift: <2.28.1, >=2.29.0 <2.29.2, ==2.30.0 Description ~~~~~~~~~~~ Sébastien Meriot (OVH) reported a vulnerability in Swift's S3 XML parser. By supplying specially crafted XML files an authenticated user may coerce the S3 API into returning arbitrary file contents from the host server resulting in unauthorized read access to potentially sensitive data; this impacts both s3api deployments (Rocky or later), and swift3 deployments (Queens and earlier, no longer actively developed). Only deployments with S3 compatibility enabled are affected. Patches ~~~~~~~ - https://review.opendev.org/870823 (2023.1/antelope) - https://review.opendev.org/870828 (Wallaby) - https://review.opendev.org/870827 (Xena) - https://review.opendev.org/870826 (Yoga) - https://review.opendev.org/870825 (Zed) Credits ~~~~~~~ - Sébastien Meriot from OVH (CVE-2022-47950) References ~~~~~~~~~~ - https://launchpad.net/bugs/1998625 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-47950 Notes ~~~~~ - The stable/wallaby branch is under extended maintenance and will receive no new point releases, but a patch for it is provided as a courtesy. -- Jeremy Stanley OpenStack Vulnerability Management Team Download attachment "signature.asc" of type "application/pgp-signature" (964 bytes)
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