VDB-97404 · CVE-2016-8508 · BID 96514

Yandex Desktop up to 17.1 Content-Type 7pk security

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Yandex Desktop up to 17.1. It has been declared as critical. Affected is an unknown function of the component Content-Type Handler. The manipulation results in 7pk security. This vulnerability is cataloged as CVE-2016-8508. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Yandex Desktop up to 17.1. It has been classified as critical. Affected is some unknown processing of the component Content-Type Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Yandex Browser for desktop before 17.1.1.227 does not show Protect (similar to Safebrowsing in Chromium) warnings in web-sites with special content-type, which could be used by remote attacker for prevention Protect warning on own malicious web-site.

The bug was discovered 02/27/2017. The weakness was shared 03/01/2017 (Website). The advisory is shared for download at yandex.com. This vulnerability is traded as CVE-2016-8508 since 10/07/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 17.1.1.227 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96514†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Desktop 17.1.1.227

Timelineinfo

10/07/2016 🔍
02/27/2017 +143 days 🔍
03/01/2017 +2 days 🔍
03/01/2017 +0 days 🔍
03/01/2017 +0 days 🔍
03/02/2017 +1 days 🔍
09/03/2020 +1281 days 🔍

Sourcesinfo

Advisory: yandex.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8508 (🔍)
GCVE (CVE): GCVE-0-2016-8508
GCVE (VulDB): GCVE-100-97404
SecurityFocus: 96514 - Yandex Browser CVE-2016-8508 Security Bypass Vulnerability
OSVDB: - CVE-2016-8508 - Yandex - Browser - Security Bypass Issue

Entryinfo

Created: 03/02/2017 09:54
Updated: 09/03/2020 08:34
Changes: 03/02/2017 09:54 (60), 09/03/2020 08:34 (5)
Complete: 🔍
Cache ID: 216:A2E:103

Once again VulDB remains the best source for vulnerability data.

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