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CVE-2023-49105 is an improper-authentication vulnerability in ownCloud core WebDAV pre-signed URL handling. It affects ownCloud Server versions 10.6.0 through 10.13.0. The application can accept a pre-signed WebDAV request as authenticated when the file owner's signing key is not configured, rather than rejecting signing operations that lack a valid secret. An unauthenticated attacker can thereby forge requests impersonating a known user account without supplying that user's password.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a Python exploit script (pwncloud-webdav.py) targeting ownCloud instances vulnerable to CVE-2023-49105. The exploit demonstrates how an attacker can gain arbitrary access to WebDAV resources, including all files stored by a user, by leveraging the vulnerability. The script sets up a local HTTP proxy server that signs and forwards WebDAV requests to the target ownCloud server, bypassing normal privilege checks. The attacker provides the target ownCloud URL and a valid username as arguments. The README provides a brief description and references an external article for more details. The code is operational and requires the 'ten' Python library. No fake or detection-only scripts are present; the repository is a working exploit for privilege escalation and arbitrary file access on vulnerable ownCloud servers.
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55 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical (CVSS 9.8) authentication-bypass vulnerability in ownCloud Server's handling of pre-signed WebDAV URLs. Default absent signing-key configurations allowed attackers who knew a username to access the user's files without a password.
An ownCloud authentication-bypass vulnerability that enabled unauthenticated access and retrieval of files from the targeted Philippine nuclear research body's systems.
An ownCloud authentication-bypass vulnerability that allows unauthenticated file retrieval through forged pre-signed WebDAV requests when an instance uses an empty signing secret.
A critical improper-authentication vulnerability in ownCloud Server WebDAV functionality that can let an unauthenticated attacker who knows a username read, modify, or delete that user's files if no signing key is configured.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.