Open redirector - ownCloud

Open redirect vulnerability in index.php aka the Login Page in ownCloud before 5.0.6 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the redirecturl parameter. Affected Software ownCloud Server 5.0.6 CVE-2013-2044 Action Taken It is...

Privilege escalation in the contacts application - ownCloud

Due to not properly checking the ownership of a single contact, an authenticated attacker is able to download contacts of other users in all ownCloud versions prior to 5.0.5 including the 4.5.x branch. Note: Successful exploitation of this privilege escalation requires the "contacts" app to be...

URL spoofing in password reset mail - ownCloud

The docker image of the ownCloud server contained a misconfiguration which rendered the ‘trusteddomains’ config useless. This could be abused to spoof the URL in password reset mails...

ownCloud Android App lock bypass - ownCloud

An attacker with physical access to the device could bypass the app lock of the ownCloud Android App...

Multiple XSS vulnerabilities - ownCloud

Multiple cross-site scripting XSS vulnerabilities in ownCloud 5.0.0 allow remote attackers to inject arbitrary web script or HTML via the "newname" POST parameter to renameTag.php in /apps/bookmarks/ajax/ Commits: 1c63eb1 stable5 Risk: Medium Note: Successful exploitation of this stored XSS...

Cross Site Request Forgery in the ocs api

The CSRF token was not properly checked on cookie authenticated requests against the ocs api...

Login bypass when using the external FTP user backend - ownCloud

ownCloud provides multiple user backends that can be used to authenticate users. One of those backend providers is "userexternal", which authenticates users against FTP, IMAP or SMB servers. This is mainly useful when it is not possible to authenticate against an LDAP server. The FTP backend...

Server: Login bypass when using user_ldap due to unauthenticated binds

"userldap" in the web-interface called "LDAP user and group backend" is an optional authentication backend for ownCloud for using LDAP users and groups within the ownCloud web application. The ownCloud team has discovered a vulnerability within the "userldap" application which, depending on the...

LDAP injection - ownCloud

Due to not properly sanitizing the LDAP queries an attacker is able to: Gain information about existing LDAP users Modify the login query, e.g. with a wildcard Affected Software ownCloud Server 6.0.2 CVE-2014-2047 ownCloud Server 5.0.15 CVE-2014-2049 Action Taken All LDAP queries have been review...

Password autocompletion - ownCloud

Index.php aka the login page contains a form that does not disable the autocomplete setting for the password parameter, which makes it easier for local users or physically proximate attackers to obtain the password from web browsers that support autocomplete. Affected Software ownCloud Server 5.0...

Insufficiently random values - ownCloud

The rand and mtrand functions in PHP 5.4.x do not produce cryptographically strong random numbers, which allows attackers to leverage exposures in products that rely on these functions for security-relevant functionality, as demonstrated by the password-reset functionality in ownCloud 4.0.x...

XSS in Error Page - ownCloud security advisory

Platform: ownCloud Server Versions: 10.0.2 Date: 5/31/2017 Risk level: Medium CVSS v3 Base Score: 4.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CWE: Improper Neutralization of Input During Web Page Generation ‘Cross-site Scripting’ CWE-79 HackerOne report: 215410...

Improper validation of certificates when using self-signed certificates - ownCloud

The ownCloud Desktop Client was vulnerable against MITM attacks until version 1.8.2 in combination with self-signed certificates. To be exploitable the following conditions have to be met: The connection to the remote ownCloud server must be secured using a self-signed certificate which the user...

Stored XSS in "bookmarks" application - ownCloud

Due to not sanitising all user provided input, the "bookmarks" application shipped with the below mentioned ownCloud versions is vulnerable to a stored Cross-site scripting attack. The "bookmarks" application is disabled by default. Abusing this vulnerability requires the user to import a malicio...

Multiple XSS vulnerabilities - ownCloud

Multiple cross-site scripting XSS vulnerabilities in ownCloud before 4.0.8 allow remote attackers to inject arbitrary web script or HTML via the readyCallback parameter to PUT.swf in apps/filesodfviewer/src/webodf/webodf/flashput/ the root parameter to index.php in apps/gallery/templates/ a...

Improper validation of certificates within the iOS application - ownCloud

The ownCloud iOS Library was vulnerable against a remotely exploitable certification problem until version 1.1.2. The vulnerable library version is used by the official ownCloud iOS client until version 3.4.4. Specifically it has been discovered that the used networking library AFNetworking is pe...

Session Fixation - ownCloud

Due to authenticating a user without invalidating any existing session identifier an attacker has the opportunity to steal authenticated sessions. A successful exploit requires that PHP is configured to accept session parameters via GET. Affected Software ownCloud Server 6.0.2 CVE-2014-2047 Actio...

Local file inclusion in core - ownCloud

Due to an improper control of the filename for a requireonce statement in the routing component a limited local file inclusion vulnerability is existent in all below mentioned ownCloud versions. Depending on the ownCloud configuration and the authentication state of a remote attacker this...

Server: Insecure Flash Cross Domain policies

Due to insecure Flash Cross Domain policies an attacker might gain access to stored files of the user. For more information please consult the official advisory. This advisory is licensed CC BY-SA 4.0...

Server: Session Fixation

Due to authenticating a user without invalidating any existing session identifier an attacker has the opportunity to steal authenticated sessions. A successful exploit requires that PHP is configured to accept session parameters via GET. For more information please consult the official advisory...

Improper authorization checks in files_external - ownCloud

Due to not verifying whether an user has been granted access to add external storages an authenticated user could even mount external storage e.g. SMB/FTP/etc. without permission. Affected Software ownCloud Server 6.0.3 CVE-2014-3835 ownCloud Server 5.0.16 CVE-2014-3835 Action Taken We reviewed t...

Server: Reflected XSS in the file list

Cross-site scripting XSS vulnerability in apps/files/js/filelist.js in ownCloud before 4.0.5 allows remote attackers to inject arbitrary web script or HTML via the file parameter. For more information please consult the official advisory. This advisory is licensed CC BY-SA 4.0...

Server: Full installation path disclosure through error message

ownCloud returns exception error messages to the user in two different places, allowing an authenticated adversary to gain information about the installation path of the ownCloud instance. There is no further information disclosure. For more information please consult the official advisory. This...

Calendar export: Authorization Bypass Through User-Controlled Key - ownCloud

Due to not properly checking the ownership of an calendar, an authenticated attacker is able to download calendars of other users via the "calid" GET parameter to export.php in /apps/calendar/ Affected Software ownCloud Server 8.1.1 CVE-2015-6670 ownCloud Server 8.0.6 CVE-2015-6670 ownCloud Serve...

Server: Privilege escalation and CSRF in the API

Due to an insufficient permission check, an authenticated attacker is able to execute API commands as administrator. Additionally, an unauthenticated attacker could abuse this flaw as a cross-site request forgery vulnerability. For more information please consult the official advisory. This...

Server: Insecure database password generator

Due to using "time" as random source in the ownCloud installation routine, the entropy of the generated PostgreSQL database user password is very low and can be easily guessed. This issue is inside the ownCloud setup routine and is not related to any PostgreSQL vulnerability. For more information...

Server: Potential local file disclosure

ownCloud offers the OCUtil::getUrlContent to developers. Using this function applications can download content from remote websites. Due to a newly introduced bug in this functionality it was following redirects to other protocols such as file://. Thus, an attacker may be able to gain access to...

Improper authorization checks in core - ownCloud

Due to an improper authorization check in core an attacker with access to at least two user account is able to access the file names of other users. Our post-mortem audit showed that this vulnerability does not leak any content of the file or the directory structure except the filename. Affected...

Information disclosure in settings UI and API responses - ownCloud

The settings page and some API responses of a few ownCloud apps contained plaintext credentials...

Server: Reflected XSS in OCS provider discovery

A Cross-site scripting XSS vulnerability in the OCS discovery provider in ownCloud Servers allows remote attackers to inject arbitrary web script or HTML via the URL resulting in a reflected Cross-Site-Scripting. Since ownCloud employs a strict Content-Security-Policy that forbids inline script...

Server: Information Exposure Through Directory Listing in the file scanner

Due to an incorrect usage of an ownCloud internal file system function the passed path to the file scanner was resolved relatively. An authenticated adversary may thus be able to get a listing of directories but not the containing files existing on the filesystem. However, it is not possible to...

Server: XSS Vulnerability in jPlayer

A cross-site scripting XSS vulnerability in all ownCloud versions prior to 5.0.5 including the 4.0.x branch allows remote attackers to execute arbitrary javascript when a user opens a special crafted URL. This vulnerability exists in the bundled 3rdparty plugin "jPlayer", "jPlayer" released versi...

Server: Multiple XSS vulnerabilities

Multiple cross-site scripting XSS vulnerabilities in ownCloud 5.0.0 allow remote attackers to inject arbitrary web script or HTML via the "newname" POST parameter to renameTag.php in /apps/bookmarks/ajax/ Commits: 1c63eb1 stable5 Risk: Medium Note: Successful exploitation of this stored XSS...

Server: Auth bypass in /lib/base.php

/lib/base.php before ownCloud 4.0.8 does not properly validate the userid session variable via WebDAV, which allows authenticated attackers to gain access to other users files. For more information please consult the official advisory. This advisory is licensed CC BY-SA 4.0...

Mobile App: Credentials potentially leaked to other configured ownCloud instance

A bug in the ownCloud iOS application below version 3.4.4 may leak credentials as well as cookies used for authentication purposes to other configured ownCloud instances. Specifically, the ownCloud iOS application allows users to connect to multiple ownCloud instances offering an easy way to swit...

Server: Multiple stored XSS in "contacts" application

Due to not sanitising all user provided input, the "contacts" application shipped with the mentioned ownCloud versions is vulnerable to multiple stored cross-site scripting attacks. The "contacts" application is enabled by default in the ownCloud Community Edition but not shipped with the ownClou...

Server: Incomplete blacklist vulnerability

Incomplete blacklist vulnerability in ownCloud before 5.0.6 allows authenticated remote attackers to execute arbitrary PHP code by uploading a crafted file and accessing an uploaded PHP file. Note: Successful exploitation requires that the /data/ directory is stored inside the webroot and a...

Server: Multiple reflected XSS

Multiple cross-site scripting XSS vulnerabilities in ownCloud before 4.0.2 allow remote attackers to inject arbitrary web script or HTML via file names to apps/userldap/settings.php url or title parameter to apps/bookmarks/ajax/editBookmark.php tag or page parameter to...

Server: Reflected XSS

Cross-site scripting XSS vulnerability in index.php in ownCloud before 4.0.3 allows remote attackers to inject arbitrary web script or HTML via the redirecturl parameter. For more information please consult the official advisory. This advisory is licensed CC BY-SA 4.0...

Desktop Client: Improper validation of certificates when using self-signed certificates

The ownCloud Desktop Client was vulnerable against MITM attacks until version 1.8.2 in combination with self-signed certificates. To be exploitable the following conditions have to be met: The connection to the remote ownCloud server must be secured using a self-signed certificate which the user...

Multiple XSS vulnerabilities - ownCloud

Cross-site scripting XSS vulnerabilities in js/viewer.js inside the filesvideoviewer application via multiple unspecified vectors in all ownCloud versions prior to 5.0.7 and 4.5.12 allows authenticated remote attackers to inject arbitrary web script or HTML via shared files. CVE-2013-2150...

Server: Password autocompletion

Index.php aka the login page contains a form that does not disable the autocomplete setting for the password parameter, which makes it easier for local users or physically proximate attackers to obtain the password from web browsers that support autocomplete. For more information please consult t...

Server: Multiple code executions

A code executions vulnerability in ownCloud 4.5.6 and 4.0.11 and all prior versions allow authenticated remote attackers to execute arbitrary PHP code via unspecified POST parameters to translations.php in /core/ajax/ Commits: 74e73bc stable4, ece08cd stable45 Risk: Critical A code executions...

Server: Privilege escalation in the calendar application

Due to not properly checking the ownership of an calendar, an authenticated attacker is able to download calendars of other users via the "calendarid" GET parameter to /apps/calendar/ajax/events.php Note: Successful exploitation of this privilege escalation requires the "calendar" app to be enabl...

Server: Multiple SQL injection

ownCloud before 5.0.6 does not neutralize special elements that are passed to the SQL query in lib/db.php which therefore allows an authenticated attacker to execute arbitrary SQL commands. CVE-2013-2045 ownCloud before 5.0.6 and 4.5.11 does not neutralize special elements that are passed to the...

Server Side Request Forgery (SSRF) through user_ldap app - ownCloud

Server Side Request Forgery SSRF vulnerability in the settings of the userldap app. Administration role is necessary for exploitation...

Server: Bypass of file blacklist

A blacklist bypass vulnerability including UTF-8 encoding in file paths in the mentioned ownCloud versions, allows authenticated remote attackers to bypass the file blacklist and upload files such as the .htaccess files. An attacker could leverage this bypass by uploading a .htaccess and execute...

Server: CSRF in "bookmarks" application

Due to not verifying the CSRF token on the import functionality of the "bookmarks" application, it was vulnerable against CSRF attacks. The "bookmarks" application is disabled by default. An unauthenticated attacker could have used this to import bookmarks into the "bookmarks" application if the...

Server: Stored XSS in "bookmarks" application

Due to not sanitising all user provided input, the "bookmarks" application shipped with the below mentioned ownCloud versions is vulnerable to a stored Cross-site scripting attack. The "bookmarks" application is disabled by default. Abusing this vulnerability requires the user to import a malicio...

Server: Multiple XSS vulnerabilities

Cross-site scripting XSS vulnerabilities in js/viewer.js inside the filesvideoviewer application via multiple unspecified vectors in all ownCloud versions prior to 5.0.7 and 4.5.12 allows authenticated remote attackers to inject arbitrary web script or HTML via shared files. CVE-2013-2150...