Blizzard Overwatch 1.15.0.2 Competitive Match race condition

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CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability classified as problematic was found in Blizzard Overwatch 1.15.0.2. This vulnerability affects an unknown functionality of the component Competitive Match Handler. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. As an impact it is known to affect availability. CVE summarizes:

Race condition in Blizzard Overwatch 1.15.0.2 allows remote authenticated users to cause a denial of service (season bans and SR losses for other users) by leaving a competitive match at a specific time during the initial loading of that match.

The bug was discovered 09/21/2017. The weakness was shared 09/26/2017 by Chromega. (Website). The advisory is shared for download at us.battle.net. This vulnerability was named CVE-2017-14748 since 09/26/2017. The attack can be initiated remotely. The successful exploitation needs a single authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/14/2021).

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101087).

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VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

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Exploitinginfoedit

Class: Race condition
CWE: CWE-362
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: no mitigation known
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Timelineinfoedit

09/21/2017 🔍
09/26/2017 +5 days 🔍
09/26/2017 +0 days 🔍
09/26/2017 +0 days 🔍
09/26/2017 +0 days 🔍
09/27/2017 +1 days 🔍
01/14/2021 +1205 days 🔍

Sourcesinfoedit

Advisory: us.battle.net
Researcher: Chromega.
Status: Not defined

CVE: CVE-2017-14748 (🔍)
SecurityFocus: 101087 - Blizzard Overwatch CVE-2017-14748 Denial of Service Vulnerability

Entryinfoedit

Created: 09/27/2017 08:52 AM
Updated: 01/14/2021 02:41 PM
Changes: (1) advisory_person_name
Complete: 🔍

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