ownCloud Desktop Client up to 1.8.1 ignoreSslErrors certificate host validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in ownCloud Desktop Client up to 1.8.1. The affected element is the function QNetworkReply::ignoreSslErrors. The manipulation leads to certificate host validation. This vulnerability is uniquely identified as CVE-2015-4456. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ownCloud Desktop Client up to 1.8.1 (Cloud Software). This issue affects the function QNetworkReply::ignoreSslErrors. The manipulation with an unknown input leads to a certificate host validation vulnerability. Using CWE to declare the problem leads to CWE-297. The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host. Impacted is confidentiality. The summary by CVE is:

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

The weakness was disclosed 10/26/2015 (Website). It is possible to read the advisory at owncloud.org. The identification of this vulnerability is CVE-2015-4456 since 06/09/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 86025 (Debian DSA-3363-1 : owncloud-client - 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 175518 (Debian Security Update for owncloud-client (DSA 3363-1)).

Upgrading to version 1.8.2 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 (86025), SecurityFocus (BID 75354†) and Vulnerability Center (SBV-54145†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate host validation
CWE: CWE-297 / CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 86025
Nessus Name: Debian DSA-3363-1 : owncloud-client - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703363
OpenVAS Name: Debian Security Advisory DSA 3363-1 (owncloud-client - 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: Desktop Client 1.8.2

Timelineinfo

06/08/2015 🔍
06/09/2015 +1 days 🔍
09/20/2015 +103 days 🔍
09/21/2015 +1 days 🔍
10/26/2015 +35 days 🔍
10/26/2015 +0 days 🔍
10/27/2015 +1 days 🔍
11/04/2015 +8 days 🔍
11/24/2024 +3308 days 🔍

Sourcesinfo

Advisory: 3283
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4456 (🔍)
GCVE (CVE): GCVE-0-2015-4456
GCVE (VulDB): GCVE-100-78887

OVAL: 🔍

SecurityFocus: 75354
Vulnerability Center: 54145 - ownCloud Desktop <1.8.2 Remote Man-in-the-Middle When Using Self-Signed Certificates, Medium

Entryinfo

Created: 10/27/2015 08:46
Updated: 11/24/2024 09:56
Changes: 10/27/2015 08:46 (67), 03/10/2018 11:11 (4), 06/25/2022 07:08 (3), 11/24/2024 09:56 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!