CVE-2020-7952

CVE-2020-7952 affects Valve Dota 2, where the vulnerable component is rendersystemdx9.dll. The root cause is memory corruption triggered when processing a crafted map, allowing remote attackers to achieve code execution or cause a denial of service by creating a gaming server and inviting a victi...

CVE-2020-7952

rendersystemdx9.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a victim to this server, because a crafted map is affected by memory corruption...

Valve: Hidden scheduled partner events are propagated to Steam clients in CMsgClientClanState

PartnerEvent details were propagated to Steam clients immediately upon creation, which could lead to improper exposure of hidden/scheduled event data...

Valve: [GoldSrc] RCE via 'spk' Console Command

Details: Description RCE can be achieved on clients via the 'spk' console command due to missing length checks before copying into a stack based buffer. POC 1. Place the attached cfg file in the root directory of the game: F676967 2. Launch the game and bring up the console with 3. Type in exec...

Valve: [GoldSrc] RCE via malformed BSP file

Description RCE can be achieved via a malformed BSP file due to the lack of length validation when copying data from the BSP file into a stack based buffer. POC 1. Place the attached BSP F666628 in the maps directory of the chosen GoldSrc game czero/maps, cstrike/maps, tfc/maps, etc.. 2. Launch t...

CVE-2019-13533

CVE-2019-13533 affects Omron PLC CJ and CS series (all versions). The vulnerability allows an attacker to monitor PLC-controller traffic and replay requests, potentially opening/closing industrial valves (authentication bypass via capture-replay). Affected products are Omron CJ/CS series PLCs; mi...

CVE-2019-13533

In Omron PLC CJ series, all versions, and Omron PLC CS series, all versions, an attacker could monitor traffic between the PLC and the controller and replay requests that could result in the opening and closing of industrial valves...

Valve: Steam chat - trade offer presentation vulnerability

It was possible to construct a Steam URL that began with "/tradeoffer/new" and included valid partner and token information, but which was in fact an external link. The crafted URL would be treated by the Steam Chat UI as a trade offer and given special visual treatment...

Valve Source Engine, Fortnite Servers Crippled By Gafgyt Variant

A new Gafgyt variant is adding vulnerable internet of things IoT devices to its botnet arsenal and using them to cripple gaming servers worldwide. The newly-discovered variant is capable of launching a variety of denial-of-service DoS attacks against the Valve Source Engine, a video game engine...

CVE-2019-17180

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

Design/Logic Flaw

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

PYSEC-2019-125

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

PYSEC-2019-125

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

PYSEC-2019-55

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

CVE-2019-17180

Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact...

CVE-2019-17180

Summary: CVE-2019-17180 affects Valve Steam Client prior to 2019-09-12. The vulnerability allows placing or appending partially controlled filesystem content, demonstrated by file modifications on Windows under NT AUTHORITY\SYSTEM. This could lead to denial of service, elevation of privilege, or ...

Valve: SQL injection in /errors/viewbuild/

A SQL injection vulnerability was discovered in a partner-facing tool that allowed queries against a legacy backing store...

A week in security (August 19 – 25)

Last week on Malwarebytes Labs, we reported on the presence of Magecart on a type of poker software; outlined how the Key Negotiation of Bluetooth KNOB attack works; followed the money on a Bitcoin sextortion campaign; looked back at DEF CON 27; and reported on continuing ransomware attacks on...

News Wrap: Steam Zero Day Disclosure Drama, Unix Utility Backdoor

Why did Valve-owner Steam say it made a “mistake” turning a researcher away from its bug bounty program? Who was behind a backdoor that was purposefully introduced into a utility utilized by Unix and Linux servers? And why is Facebook coming under fire for its “Clear History” feature? Threatpost...

Researcher Discloses Second Steam Zero-Day After Valve Bug Bounty Ban

A researcher has disclosed a zero-day privilege-escalation vulnerability for the Steam gaming client after he said he was barred from the bug bounty program of Steam’s owner, Valve. The vulnerability is the second zero-day privilege-escalation vulnerability that has been released by independent...