security – Page 6 – Tech Today w/ Ken May

Hacker Steals $30 Million Worth of Ethereum From Parity Multi-Sig Wallets

An anonymous reader quotes a report from Bleeping Computer: An unknown hacker has used a vulnerability in an Ethereum wallet client to steal over 153, 000 Ether, worth over $30 million dollars. The hack was possible due to a flaw in the Parity Ethereum client. The vulnerability allowed the hacker to exfiltrate funds from multi-sig wallets created with Parity clients 1.5 and later. Parity 1.5 was released on January 19, 2017. The attack took place around 19:00-20:00 UTC and was immediately spotted by Parity, a company founded by Gavin Wood, Ethereum’s founder. The company issued a security alert on its blog. The Ether stolen from Parity multi-sig accounts was transferred into this Ethereum wallet, currently holding 153, 017.021336727 Ether. Because Parity spotted the attack in time, a group named “The White Hat Group” used the same vulnerability to drain the rest of Ether stored in other Parity wallets that have not yet been stolen by the hacker. This money now resides in this Ethereum wallet. According to messages posted on Reddit and in a Gitter chat, The White Hat Group appears to be formed of security researchers and members of the Ethereum Project that have taken it into their own hands to secure funds in vulnerable wallets. Based on a message the group posted online, they plan to return the funds they took. Their wallet currently holds 377, 116.819319439311671493 Ether, which is over $76 million. Read more of this story at Slashdot.

Exploit Derived From EternalSynergy Upgraded To Target Newer Windows Versions

An anonymous reader writes: “Thai security researcher Worawit Wang has put together an exploit based on ETERNALSYNERGY that can also target newer versions of the Windows operating system, ” reports Bleeping Computer. “ETERNALSYNERGY is one of the NSA exploits leaked by the Shadow Brokers hacking group in April this year. According to a Microsoft technical analysis, the exploit can allow an attacker to execute code on Windows machines with SMB services exposed to external connections. The exploit works up to Windows 8. According to Microsoft, the techniques used in the original ETERNALSYNERGY exploit do not work on newer platforms due to several kernel security improvements. Wang says his exploit targets the same vulnerability but uses a different exploitation technique. His method ‘should never crash a target, ‘ the expert says. ‘Chance should be nearly 0%, ‘ Wang adds.” Combining his exploit with the original ETERNALSYNERGY exploit would allow a hacker to target all Windows versions except Windows 10. This is about 75% of all Windows PCs. The exploit code is available for download from Wang’s GitHub or ExploitDB. Sheila A. Berta, a security researcher for Telefonica’s Eleven Paths security unit, has published a step-by-step guide on how to use Wang’s exploit. Read more of this story at Slashdot.

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Exploit Derived From EternalSynergy Upgraded To Target Newer Windows Versions

‘Severe’ Systemd Bug Allowed Remote Code Execution For Two Years

ITWire reports: A flaw in systemd, the init system used on many Linux systems, can be exploited using a malicious DNS query to either crash a system or to run code remotely. The vulnerability resides in the daemon systemd-resolved and can be triggered using a TCP payload, according to Ubuntu developer Chris Coulson. This component can be tricked into allocating less memory than needed for a look-up. When the reply is bigger it overflows the buffer allowing an attacker to overwrite memory. This would result in the process either crashing or it could allow for code execution remotely. “A malicious DNS server can exploit this by responding with a specially crafted TCP payload to trick systemd-resolved in to allocating a buffer that’s too small, and subsequently write arbitrary data beyond the end of it, ” is how Coulson put it. Affected Linux vendors have pushed out patches — but the bug has apparently been present in systemd code since June of 2015. And long-time Slashdot reader walterbyrd also reports a recently-discovered bug where systemd unit files that contain illegal usernames get defaulted to root. Read more of this story at Slashdot.

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‘Severe’ Systemd Bug Allowed Remote Code Execution For Two Years

London Metropolitan Police’s 18,000 Windows XP PCs Is a Disaster Waiting To Happen

According to MSPoweruser, the London Metropolitan Police are still using around 18, 000 PCs powered by Windows XP, an operating system Microsoft stopped supporting in 2014. What’s more is that the police force is upgrading its PCs from Windows XP to Windows 8.1, instead of Windows 10. Only 8 PCs at the police force are reportedly powered by the “most secure version of Windows right now.” From the report: From the looks of things, the London Metropolitan Police will continue to upgrade their systems to Windows 8.1 at the moment. Windows 8.1 is still being supported by Microsoft, although the mainstream support for the OS is set to end on the 9 January 2018. Microsoft will offer extended support for the OS until 2023, which means Windows 8.1 is still a much more secure alternative for the Metropolitan Police than Windows XP. Windows 10 still would have been the best option in terms of security, however. Microsoft is releasing security updates for the OS every month, and the new advanced security features like Windows Defender Advanced Threat Protection makes PCs running Windows a whole lot more secure. The spokesman of the 0Conservative London Assembly said in a statement: “The Met is working towards upgrading its software, but in its current state it’s like a fish swimming in a pool of sharks. It is vital the Met is given the resources to step up its upgrade timeline before we see another cyber-attack with nationwide security implications.” Read more of this story at Slashdot.

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London Metropolitan Police’s 18,000 Windows XP PCs Is a Disaster Waiting To Happen

Britain’s Newest Warship Runs Windows XP, Raising Cyber Attack Fears

Chrisq shares a report from The Telegraph: Fears have been raised that Britain’s largest ever warship could be vulnerable to cyber attacks after it emerged it appears to be running the outdated Microsoft Windows XP. A defense source told The telegraph that some of the on-boar hardware and software “would have been good in 2004” when the carrier was designed, “but now seems rather antiquated.” However, he added that HMS Queen Elizabeth is due to be given a computer refit within a decade. And senior officers said they will have cyber specialists on board to defend the carrier from such attacks. Read more of this story at Slashdot.

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Britain’s Newest Warship Runs Windows XP, Raising Cyber Attack Fears

Hacker Behind Massive Ransomware Outbreak Can’t Get Emails From Victims Who Paid

Joseph Cox, reporting for Motherboard: On Tuesday, a new, worldwide ransomware outbreak took off, infecting targets in Ukraine, France, Spain, and elsewhere. The hackers hit everything from international law firms to media companies. The ransom note demands victims send bitcoin to a predefined address and contact the hacker via email to allegedly have their files decrypted. But the email company the hacker happened to use, Posteo, says it has decided to block the attacker’s account, leaving victims with no obvious way to unlock their files. The hacker tells victims to send $300 worth of bitcoin. But to determine who exactly has paid, the hacker also instructs people to email their bitcoin wallet ID, and their “personal installation key.” This is a 60 character code made up of letters and digits generated by the malware, which is presumably unique to each infection of the ransomware. That process is not possible now, though. “Midway through today (CEST) we became aware that ransomware blackmailers are currently using a Posteo address as a means of contact, ” Posteo, the German email provider the hacker had an account with, wrote in a blog post. “Our anti-abuse team checked this immediately — and blocked the account straight away. Read more of this story at Slashdot.

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Hacker Behind Massive Ransomware Outbreak Can’t Get Emails From Victims Who Paid

Anthem To Pay $115 Million In The Largest Data Breach Settlement Ever

An anonymous reader quotes CNET: Anthem, the largest health insurance company in the U.S., has agreed to settle a class action lawsuit over a 2015 data breach for a record $115 million, according to lawyers for the plaintiffs. The settlement still has to be approved by US District Court Judge Lucy Koh, who is scheduled to hear the case on August 17 in San Jose, California. And Anthem, which didn’t immediately respond to a request for confirmation and comment, isn’t admitting any admitting any wrongdoing, according to a statement it made to CyberScoop acknowledging the settlement. But if approved, it would be the largest data breach settlement in history, according to the plaintiffs’ lawyers, who announced the agreement Friday. The funds would be used to provide victims of the data breach at least two years of credit monitoring and to reimburse customers for breach-related expenses. The settlement would also guarantee a certain level of funding for “information security to implement or maintain numerous specific changes to its data security systems, including encryption of certain information and archiving sensitive data with strict access controls, ” the plaintiff attorneys said. The breach compromised data for 80 million people, including their social security numbers, birthdays, street addresses (and email addresses) as well as income data. The $115 million settlement averages out to $1.43 for every person who was affected. Read more of this story at Slashdot.

Cisco Subdomain Private Key Found in Embedded Executable

Earlier this month, a developer accidentally discovered the private key of a Cisco subdomain. An anonymous reader shares the post: Last weekend, in an attempt to get Sky’s NOW TV video player (for Mac) to work on my machine, I noticed that one of the Cisco executables contains a private key that is associated with the public key in a trusted certificate for a cisco.com sub domain. This certificate is used in a local WebSocket server, presumably to allow secure Sky/NOW TV origins to communicate with the video player on the users’ local machines. I read the Baseline Requirements document (version 1.4.5, section 4.9.1.1), but I wasn’t entirely sure whether this is considered a key compromise. I asked Hanno Bock on Twitter, and he advised me to post the matter to this mailing list. The executable containing the private key is named ‘CiscoVideoGuardMonitor’, and is shipped as part of the NOW TV video player. In case you are interested, the installer can be found here (SHA-256: 56feeef4c3d141562900f9f0339b120d4db07ae2777cc73a31e3b830022241e6). I would recommend to run this installer in a virtual machine, because it drops files all over the place, and installs a few launch items (agents/daemons). The executable ‘CiscoVideoGuardMonitor’ can be found at ‘$HOME/Library/Cisco/VideoGuardPlayer/VideoGuardMonitor/ VideoGuardMonitor.bundle/Contents/MacOS/CiscoVideoGuardMonitor’. Certificate details: Serial number: 66170CE2EC8B7D88B4E2EB732E738FE3A67CF672, DNS names: drmlocal.cisco.com, Issued by: HydrantID SSL ICA G2. The issuer HydrantID has since communicated with the certificate holder Cisco, and the certificate has been revoked. Read more of this story at Slashdot.

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Cisco Subdomain Private Key Found in Embedded Executable

Serious privilege escalation bug in Unix OSes imperils servers everywhere

Enlarge (credit: Victorgrigas ) A raft of Unix-based operating systems—including Linux, OpenBSD, and FreeBSD—contain flaws that let attackers elevate low-level access on a vulnerable computer to unfettered root. Security experts are advising administrators to install patches or take other protective actions as soon as possible. Stack Clash, as the vulnerability is being called, is most likely to be chained to other vulnerabilities to make them more effectively execute malicious code, researchers from Qualys, the security firm that discovered the bugs, said in a blog post published Monday . Such local privilege escalation vulnerabilities can also pose a serious threat to server host providers because one customer can exploit the flaw to gain control over other customer processes running on the same server. Qualys said it’s also possible that Stack Clash could be exploited in a way that allows it to remotely execute code directly. “This is a fairly straightforward way to get root after you’ve already gotten some sort of user-level access,” Jimmy Graham, director of product management at Qualys, told Ars. The attack works by causing a region of computer memory known as the stack to collide into separate memory regions that store unrelated code or data. “The concept isn’t new, but this specific exploit is definitely new.” Read 5 remaining paragraphs | Comments

Microsoft Will Disable WannaCry Attack Vector SMBv1 Starting This Fall

An anonymous reader writes: Starting this fall, with the public launch of the next major Windows 10 update — codenamed Redstone 3 — Microsoft plans to disable SMBv1 in most versions of the Windows operating systems. SMBv1 is a three-decades-old file sharing protocol that Microsoft has continued to ship “enabled by default” with all Windows OS versions. The protocol got a lot of attention recently as it was the main infection vector for the WannaCry ransomware. Microsoft officially confirmed Tuesday that it will not ship SMBv1 with the Fall Creators Update. This change will affect only users performing clean installs, and will not be shipped as an update. This means Microsoft decision will not affect existing Windows installations, where SMBv1 might be part of a critical system. Read more of this story at Slashdot.

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Microsoft Will Disable WannaCry Attack Vector SMBv1 Starting This Fall