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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a new Binding Operational Directive (BOD) that directs federal agencies in the country to keep track of assets and vulnerabilities on their networks six months from now. To that end, Federal Civilian Executive Branch (FCEB) enterprises have been tasked with two sets of activities: Asset discovery and vulnerability enumeration, which are seen as essential steps to gain "greater visibility into risks facing federal civilian networks." This  involves  carrying out automated asset discovery every seven days and initiating vulnerability enumeration across those discovered assets every 14 days by April 3, 2023, in addition to having the capabilities to do so on an on-demand basis within 72 hours of receiving a request from CISA. Similar baseline vulnerability enumeration obligations have also been put in place for Android and iOS devices as well as other devices that reside outside of agency on-premise...

Nicknamed ProxyNotShell, a new exploit used in the wild takes advantage of the recently published Microsoft Server-Side Request Forgery (SSRF) vulnerability CVE-2022-41040 and a second vulnerability, CVE-2022-41082 that allows Remote Code Execution (RCE) when PowerShell is available to unidentified attackers. Based on ProxyShell, this new zero-day abuse risk leverage a chained attack similar to the one used in the 2021 ProxyShell attack that exploited the combination of multiple vulnerabilities - CVE-2021-34523, CVE-2021-34473, and CVE-2021-31207 – to permit a remote actor to execute arbitrary code. Despite the potential severity of attacks using them, ProxyShell vulnerabilities are still on CISA’s list of top 2021 routinely exploited vulnerabilities. Meet ProxyNotShell  Recorded on September 19, 2022, CVE-2022-41082 is an attack vector targeting Microsoft’s Exchange Servers, enabling attacks of low complexity with low privileges required. Impacted services, if vulnerable, ena...

Australian telecom giant Optus on Monday confirmed that nearly 2.1 million of its current and former customers suffered a leak of their personal information and at least one form of identification number as a result of a  data breach  late last month. The company also  said  it has engaged the services of Deloitte to conduct an external forensic assessment of the attack to "understand how it occurred and how we can prevent it from occurring again." Optus is fully owned by Singaporean telecommunications conglomerate Singtel, which also has a significant stake in Bharti Airtel, the second largest carrier in India. "Approximately 1.2 million customers have had at least one number from a current and valid form of identification, and personal information, compromised," Singtel  said  in an announcement made on its website. It also said the breach affected expired IDs and personal information of about 900,000 additional customers. It further emphasized that...

A threat actor likely with associations to China has been attributed to a new supply chain attack that involves the use of a trojanized installer for the Comm100 Live Chat application to distribute a JavaScript backdoor. Cybersecurity firm CrowdStrike said the attack made use of a signed Comm100 desktop agent app for Windows that was downloadable from the company's website. The scale of the attack is currently unknown, but the trojanized file is said to have been identified at organizations in the industrial, healthcare, technology, manufacturing, insurance, and telecom sectors in North America and Europe. Comm100 is a Canadian provider of live audio/video chat and customer engagement software for enterprises. It  claims  to have more than 15,000 customers across 51 countries. "The installer was signed on September 26, 2022 at 14:54:00 UTC using a valid Comm100 Network Corporation certificate," the company  noted , adding it remained available until September 29. E...

The recently discovered Linux-Based ransomware strain known as Cheerscrypt has been outed as a handiwork of a Chinese cyber espionage group known for operating short-lived ransomware schemes . Cybersecurity firm Sygnia attributed the attacks to a threat actor it tracks under the name Emperor Dragonfly, which is also known as Bronze Starlight (Secureworks) and DEV-0401 (Microsoft). "Emperor Dragonfly deployed open source tools that were written by Chinese developers for Chinese users," the company said in a report shared with The Hacker News. "This reinforces claims that the 'Emperor Dragonfly' ransomware operators are based in China." The use of Cheerscrypt is the latest addition to a long list of ransomware families previously deployed by the group in little over a year, including LockFile, Atom Silo, Rook, Night Sky, Pandora, and LockBit 2.0. Secureworks, in its profile of the group, noted "it is plausible that Bronze Starlight deploys ransomw...