Date: Fri, 4 Nov 2022 14:51:00 -0400 From: Demi Marie Obenour <demi@...isiblethingslab.com> To: oss-security@...ts.openwall.com Subject: Re: CVE-2022-37865: Apache Ivy allow create/overwrite any file on the system On Fri, Nov 04, 2022 at 12:06:48PM +0100, Stefan Bodewig wrote: > Severity: medium > > Description: > > With Apache Ivy 2.4.0 an optional packaging attribute has been > introduced that allows artifacts to be unpacked on the fly if they used > pack200 or zip packaging. > > For artifacts using the "zip", "jar" or "war" packaging Ivy prior to > 2.5.1 doesn't verify the target path when extracting the archive. An > archive containing absolute paths or paths that try to traverse > "upwards" using ".." sequences can then write files to any location on > the local fie system that the user executing Ivy has write access to. > > Mitigation: > > Ivy users of version 2.4.0 to 2.5.0 should upgrade to Ivy 2.5.1. > > Credit: > > This issue was discovered by Kostya Kortchinsky of the Databricks Security Team. FYI, you might want to rotate your OpenPGP key, or at least use a newer hash algorithm. The signature I got uses SHA-1 which is no longer considered secure. -- Sincerely, Demi Marie Obenour (she/her/hers) Invisible Things Lab Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)
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