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CVE-2024-21591 - Juniper J-Web OOB Write vulnerability
CVE-2024-21591 - Juniper J-Web OOB Write vulnerability
  • Juniper Networks recently patched a critical pre-authentication Remote Code Execution (RCE) vulnerability in the J-Web configuration interface across all versions of Junos OS on SRX firewalls and EX switches. Unauthenticated actors could exploit this vulnerability to gain root access or initiate Denial of Service (DoS) attacks on devices that have not been patched. Ensure your systems are updated promptly to mitigate this risk. Check for exposed J-Web configuration interfaces using this Censys Search query: services.software.uniform_resource_identifier: cpe:2.3:a:juniper:jweb:*:*:*:*:*:*:*:*. * As emphasized last year in CISA’s BOD 23-02 guidance, exposed network management interfaces continue to pose a significant risk. Restrict access to these interfaces from the public internet wherever possible.
·censys.com·
CVE-2024-21591 - Juniper J-Web OOB Write vulnerability
Cryptojacker arrested in Ukraine over EUR 1.8 million mining scheme
Cryptojacker arrested in Ukraine over EUR 1.8 million mining scheme
The 29-year-old individual was apprehended in Mykolaiv, Ukraine, on 9 January. Three properties were searched to gather evidence against the main suspect. The arrest comes after months of intensive collaboration between Ukrainian authorities, Europol and a cloud provider, who worked tirelessly to identify and locate the individual behind the widespread cryptojacking operation.The suspect is believed to have mined over USD...
·europol.europa.eu·
Cryptojacker arrested in Ukraine over EUR 1.8 million mining scheme
Attack of the week: Airdrop tracing – A Few Thoughts on Cryptographic Engineering
Attack of the week: Airdrop tracing – A Few Thoughts on Cryptographic Engineering
It's been a while since I wrote an "attack of the week" post, and the fault for this is entirely mine. I've been much too busy writing boring posts about Schnorr signatures! But this week's news brings an exciting story with both technical and political dimensions: new reports claim that Chinese security agencies have developed…
·blog.cryptographyengineering.com·
Attack of the week: Airdrop tracing – A Few Thoughts on Cryptographic Engineering
SharePoint Pre-Auth RCE chain (CVE-2023–29357 & CVE-2023–24955) | STAR Labs
SharePoint Pre-Auth RCE chain (CVE-2023–29357 & CVE-2023–24955) | STAR Labs
Brief I may have achieved successful exploitation of a SharePoint target during Pwn2Own Vancouver 2023. While the live demonstration lasted only approximately 30 seconds, it is noteworthy that the process of discovering and crafting the exploit chain consumed nearly a year of meticulous effort and research to complete the full exploit chain. This exploit chain leverages two vulnerabilities to achieve pre-auth remote code execution (RCE) on the SharePoint server: Authentication Bypass – An unauthenticated attacker can impersonate as any SharePoint user by spoofing valid JSON Web Tokens (JWTs), using the none signing algorithm to subvert signature validation checks when verifying JWT tokens used for OAuth authentication.
·starlabs.sg·
SharePoint Pre-Auth RCE chain (CVE-2023–29357 & CVE-2023–24955) | STAR Labs
Active Exploitation of Two Zero-Day Vulnerabilities in Ivanti Connect Secure VPN
Active Exploitation of Two Zero-Day Vulnerabilities in Ivanti Connect Secure VPN
Volexity has uncovered active in-the-wild exploitation of two vulnerabilities allowing unauthenticated remote code execution in Ivanti Connect Secure VPN appliances. An official security advisory and knowledge base article have been released by Ivanti that includes mitigation that should be applied immediately. However, a mitigation does not remedy a past or ongoing compromise. Systems should simultaneously be thoroughly analyzed per details in this post to look for signs of a breach.
·volexity.com·
Active Exploitation of Two Zero-Day Vulnerabilities in Ivanti Connect Secure VPN
Revealed: How a secret Dutch mole aided the U.S.-Israeli Stuxnet cyberattack on Iran
Revealed: How a secret Dutch mole aided the U.S.-Israeli Stuxnet cyberattack on Iran
For years, an enduring mystery has surrounded the Stuxnet virus attack that targeted Iran’s nuclear program: How did the U.S. and Israel get their malware onto computer systems at the highly secured uranium-enrichment plant?
·news.yahoo.com·
Revealed: How a secret Dutch mole aided the U.S.-Israeli Stuxnet cyberattack on Iran
Dutch man sabotaged Iranian nuclear program without Dutch government's knowledge: report
Dutch man sabotaged Iranian nuclear program without Dutch government's knowledge: report
In 2008, a Dutchman played a crucial role in the United States and Israeli-led operation to sabotage Iran’s nuclear program. The then 36-year-old Erik van Sabben infiltrated an Iranian nuclear complex and released the infamous Stuxnet virus, paralyzing the country’s nuclear program. The AIVD recruited the man, but Dutch politicians knew nothing about the operation, the Volkskrant reports after investigating the sabotage for two years.
·nltimes.nl·
Dutch man sabotaged Iranian nuclear program without Dutch government's knowledge: report
Analyzing DPRK's SpectralBlur
Analyzing DPRK's SpectralBlur
In both his twitter (err, X) thread and in a subsequent posting he provided a comprehensive background and triage of the malware dubbed SpectralBlur. In terms of its capabilities he noted: SpectralBlur is a moderately capable backdoor, that can upload/download files, run a shell, update its configuration, delete files, hibernate or sleep, based on commands issued from the C2. -Greg He also pointed out similarities to/overlaps with the DPRK malware known as KandyKorn (that we covered in our “Mac Malware of 2024” report), while also pointing out there was differences, leading him to conclude: We can see some similarities ... to the KandyKorn. But these feel like families developed by different folks with the same sort of requirements. -Greg
·objective-see.org·
Analyzing DPRK's SpectralBlur