Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite arbitrary files on the file system, and in specific deployment scenarios allows the attacker to overwrite the configuration, which can be exploited to trigger Remote Code Execution (RCE).

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite arbitrary     files on the file system, and in specific deployment scenarios allows the attacker to overwrite the     configuration, which can be exploited to trigger Remote Code Execution (RCE). (CVE-2023-33466)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3562 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3562-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                         Anton Gladky     September 12, 2023                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : orthanc     Version        : 1.5.6+dfsg-1+deb10u1     CVE ID         : CVE-2023-33466     Debian Bug     : 1040597

    A security vulnerability was identified in Orthanc, a DICOM server used for     medical imaging, whereby authenticated API users had the capability to overwrite     arbitrary files and, in certain configurations, execute unauthorized code.

    This update addresses the issue by backporting a safeguard mechanism: the     RestApiWriteToFileSystemEnabled option is now included, and it is set to true     by default in the /etc/orthanc/orthanc.json configuration file. Should users     wish to revert to the previous behavior, they can manually set this option     to true themselves.

    For Debian 10 buster, this problem has been fixed in version     1.5.6+dfsg-1+deb10u1.

    We recommend that you upgrade your orthanc packages.

    For the detailed security status of orthanc please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/orthanc

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5473 advisory.

    It was discovered that authenticated API users of Orthanc, a DICOM server for medical imaging, could     overwrite arbitrary files and in some setups execute arbitrary code. This update backports the option     RestApiWriteToFileSystemEnabled, setting it to true in /etc/orthanc/orthanc.json restores the previous     behaviour. For the oldstable distribution (bullseye), this problem has been fixed in version     1.9.2+really1.9.1+dfsg-1+deb11u1. For the stable distribution (bookworm), this problem has been fixed in     version 1.10.1+dfsg-2+deb12u1. We recommend that you upgrade your orthanc packages. For the detailed     security status of orthanc please refer to its security tracker page at: https://security-     tracker.debian.org/tracker/orthanc

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
255513	Linux Distros Unpatched Vulnerability : CVE-2023-33466	Nessus	Misc.	high
181278	Debian dla-3562 : orthanc - security update	Nessus	Debian Local Security Checks	high
179630	Debian DSA-5473-1 : orthanc - security update	Nessus	Debian Local Security Checks	high

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