ownCloud up to 5.0.18/6.0.6/7.0.4 Blacklist Filter UTF-8 Encoding injection

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in ownCloud up to 5.0.18/6.0.6/7.0.4. It has been classified as critical. This impacts an unknown function of the component Blacklist Filter. The manipulation as part of UTF-8 Encoding leads to injection. This vulnerability is uniquely identified as CVE-2015-3013. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ownCloud up to 5.0.18/6.0.6/7.0.4 (Cloud Software) and classified as critical. This issue affects an unknown code block of the component Blacklist Filter. The manipulation as part of a UTF-8 Encoding leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

ownCloud Server before 5.0.19, 6.x before 6.0.7, and 7.x before 7.0.5 allows remote authenticated users to bypass the file blacklist and upload arbitrary files via a file path with UTF-8 encoding, as demonstrated by uploading a .htaccess file.

The weakness was disclosed 05/08/2015 by Lukas Reschke (Website). It is possible to read the advisory at owncloud.org. The identification of this vulnerability is CVE-2015-3013 since 04/08/2015. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 83193 (Debian DSA-3244-1 : owncloud - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175391 (Debian Security Update for owncloud (DSA 3244-1)).

Upgrading to version 5.0.19, 6.0.7 or 7.0.5 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (83193), SecurityFocus (BID 74451†) and Vulnerability Center (SBV-55405†). The entries VDB-75225 and VDB-75226 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83193
Nessus Name: Debian DSA-3244-1 : owncloud - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703244
OpenVAS Name: Debian Security Advisory DSA 3244-1 (owncloud - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ownCloud 5.0.19/6.0.7/7.0.5

Timelineinfo

03/25/2015 🔍
04/08/2015 +14 days 🔍
05/02/2015 +24 days 🔍
05/04/2015 +2 days 🔍
05/08/2015 +4 days 🔍
05/08/2015 +0 days 🔍
05/09/2015 +1 days 🔍
05/25/2015 +16 days 🔍
12/28/2015 +217 days 🔍
04/01/2025 +3381 days 🔍

Sourcesinfo

Advisory: owncloud.org
Researcher: Lukas Reschke
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3013 (🔍)
GCVE (CVE): GCVE-0-2015-3013
GCVE (VulDB): GCVE-100-75227

OVAL: 🔍

SecurityFocus: 74451 - ownCloud CVE-2015-3013 Security Bypass Vulnerability
Vulnerability Center: 55405 - ownCloud Server Remote Security Bypass Vulnerability of Files Blacklist, Medium

See also: 🔍

Entryinfo

Created: 05/09/2015 20:44
Updated: 04/01/2025 00:46
Changes: 05/09/2015 20:44 (65), 06/20/2018 08:23 (13), 04/01/2025 00:46 (19)
Complete: 🔍
Cache ID: 216::103

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