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Yesterday β€” 17 October 2021Security Affairs

Experts hacked a fully patched iOS 15 running on iPhone 13 at China’s Tianfu Cup hacking contest

17 October 2021 at 16:48

White hat hackers earned $1.88 million at the Tianfu Cup hacking contest by finding vulnerabilities in popular software.

The Tianfu Cup is the most important hacking contest held in China, this year white hat hackers earned $1.88 Million demonstrating vulnerabilities in popular software.

The edition of this year took place on October 16 and 17 in the city of Chengdu, participants had three attempts of 5 minutes to demonstrate their exploits.

TFC 2021 is coming! Oct. 16th-17th, see you again at CHENGDU, CHINA. This year, the total bonus is up to $1.5 Million, with new category and targets, waiting for you to PWN and WIN. https://t.co/XfAxZbttfq pic.twitter.com/zRSpQ6MkIk

β€” TianfuCup (@TianfuCup) July 15, 2021

The winner is the security firmΒ Kunlun Lab who earned $654,500, below the tweet of the amazing expert @mj0011 CEO of Cyber-Kunlun & Kunlun Lab and former CTO of Qihoo 360 and founder of team 360Vulcan.

New company but still ranked as #1 this year TianfuCup. Almost all targets are fully pwned this time(except Synology). last photo : the empty review room after 0day party pic.twitter.com/TRM37hAYuh

β€” mj0011 (@mj0011sec) October 17, 2021

 Tianfu Cup 2021

This year’s edition included a list of 16 possible targets, participants successfully demonstrated exploits against 13 of them:

  • Windows 10 – hacked 5 times
  • Adobe PDF Reader – 4 times
  • Ubuntu 20 – 4 times
  • Parallels VM – 3 times
  • iOS 15 – 3 times
  • Apple Safari – 2 times
  • Google Chrome – 2 times
  • ASUS AX56U router – 2 times
  • Docker CE – 1 time
  • VMWare ESXi – 1 time
  • VMWare Workstation – 1 time
  • qemu VM – 1 time
  • Microsoft Exchange – 1 time

One of the exploits demonstrated at the contest immediately attracted the attention of the media, it is a zero-click remote code execution exploit against a fully patched iOS 15 running on the latest iPhone 13. The Chian Pangu won the highest single bonus in the history of this competition for this exploit, $300000.

The iPhone 13 Pro Safari escaped from prison remotely, and Chian Pangu won the highest single bonus of $300000 in history.πŸŽ‰πŸŽ‰@mj0011sec pic.twitter.com/rrCa1cGcnN

β€” HBS (@765075247Hbs) October 16, 2021

Pangu team iPhone 13 Pro IOS 15 Safari remote jailbreak attack video, really fast. @mj0011sec pic.twitter.com/JlO572oia8

β€” HBS (@765075247Hbs) October 17, 2021

The participants also demonstrated a remote code execution exploit chain against Google Chrome, this is the first time that this kind of exploit was demonstrated at the Tianfu Cup.

First confirmed entry for day1 of TianfuCup, Kunlun Lab @S0rryMybad pwned Google Chrome to get Windows system kernel level privilege with only two bugs. First time since 2015 as I remembered https://t.co/xy1dTzl1GV

β€” mj0011 (@mj0011sec) October 16, 2021

No exploit was demonstrated against Synology DS220j NAS, Xiaomi Mi 11 smartphone, and an unnamed domestic electric vehicle.

Follow me on Twitter: @securityaffairs and Facebook

PierluigiΒ Paganini

(SecurityAffairs – hacking, Tianfu Cup 2021)

The post Experts hacked a fully patched iOS 15 running on iPhone 13 at China’s Tianfu Cup hacking contest appeared first on Security Affairs.

Twitch security breach had minimal impact, the company states

17 October 2021 at 12:58

Twitch provided an update for the recent security breach, the company confirmed that it only had a limited impact on a small number of users.

Twitch downplayed the recent security breach in an update, the company said it only impacted a small number of users.

According to the update, login credentials or full payment card data belonging to users or streamers were not exposed.

The root cause of the incident was a server configuration change that allowed improper access by an unauthorized third party. Twitch passwords have not been exposed, the company believes that systems that store Twitch login credentials, which are hashed with bcrypt, were not accessed.

β€œTwitch passwords have not been exposed. We are also confident that systems that store Twitch login credentials, which are hashed with bcrypt, were not accessed, nor were full credit card numbers or ACH / bank information.” reads the update. β€œThe exposed data primarily contained documents from Twitch’s source code repository, as well as a subset of creator payout data. We’ve undergone a thorough review of the information included in the files exposed and are confident that it only affected a small fraction of users and the customer impact is minimal. We are contacting those who have been impacted directly.”

Early this month, an anonymous 4chan user has published a torrent link to a 128GB file on the 4chan discussion board, the leaked archive contains sensitive data stolen from 6,000 internal Twitch Git repositories. The leaker, who used theΒ #DoBetterTwitchΒ hashtag, claims to have leaked the data in response to harassment raids targeting the platform streamers this summer.In August, the streamers used the same hashtag to share on Twitter evidence of the hate raids that targeted them, at the time the platform chats were flooded with hateful content.

β€œTheir community is also a disgusting toxic cesspool, so to foster more disruption and competition in the online video streaming space, we have completely pwned them, and in part one, are releasing the source code from almost 6,000 internal Git repositories,” reads the message published by the leaker.

Twitch data leak

The anonymous user’s thread, named β€˜twitch leaks part one’ claims that the archive contains:

  • The entirety of twitch.tv, with commit history going back to its early beginnings
  • Mobile, desktop, and video game console clients
  • Various proprietary SDKs and internal AWS services used by platform
  • Every other property that Twitch owns, including IGDB and CurseForge
  • An unreleased Steam competitor from Amazon Game Studios
  • Twitch SOC internal red teaming tools (lol)
  • and the creator payout reports from 2019 until now.

Follow me on Twitter: @securityaffairs and Facebook

PierluigiΒ Paganini

(SecurityAffairs – hacking, data breach)

The post Twitch security breach had minimal impact, the company states appeared first on Security Affairs.

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