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Found 6 results

  1. A track of BlueKeep CVE-2019-0708 scanners and exploits. Scanners https://github.com/zerosum0x0/CVE-2019-0708 - first uploaded May 22nd 2019 https://www.rapid7.com/db/modules/auxiliary/scanner/rdp/cve_2019_0708_bluekeep - first uploaded May 25th 2019 Remote code execution exploits Unreleased Technical writeups @0xeb_bp has released a technical writeup. It doesn't contain code but it does make clear how to reach exploitation, at least on XP. 0xeb_bp_BlueKeep_Technical_Analysis.pdf
  2. The boilerplate description "A vulnerability has been identified in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution." What it means in practice Unauthenticated remote code execution on internet connected Citrix Gateway devices = bad. Are attackers actually exploiting this vulnerability? Yes, at scale, against targeted and untargeted assets. Impact Lame stuff like coin miners, but also devices getting backdoored, and people trying to use this to deploy ransomware inside Windows orgs behind the Citrix boxes. Vendor advisory and patches Here: https://support.citrix.com/article/CTX267027 Checking if your device has already been exploited Check out this tool, which is getting frequent updates: https://github.com/fireeye/ioc-scanner-CVE-2019-19781/tree/v1.2 Scale of the issue Somewhere in the region of ~100k devices were exploitable with this back in December. After have a huge awareness campaign via all sorts of orgs, this one is about ~10k unpatched devices at present. Those orgs are still in serious danger of exploitation. If you patched late You want to run the FireEye tool linked above to look for exploitation, as attackers may have backdoored your device. I just applied the mitigations You should also apply the patch, as it hardens the setup - just the mitigations alone present some issues.
  3. CVE-2018-13379 is being exploited in the wild on Fortigate SSL VPN firewalls. These exist as a perimeter security control, so it's a bad vulnerability. Using BinaryEdge.io I can see scanning activity from last night for first time for this vulnerability: The scanning traffic is taking place across the whole internet it appears, spray and pray style. The vulnerability is ridiculously easy to exploit, it's a 1996 style pre-auth ../ webserver exploit to read plain text administrator credentials: Timeline May 24th 2019 - Vendor posts advisory - https://fortiguard.com/psirt/FG-IR-18-384 June 4th 2019 - Vendor updates advisory to correct impacted versions August 9th 2019 - Blog explaining the different vulnerabilities in FortiOS, including this one. August 14th 2019 - Exploit appears on GitHub and exploitation details posted in TLP Rainbow. August 17th 2019 - Another exploit, checks if vulnerable before exploit. August 21nd 2019 - Exploitation seen in wild.
  4. CVE-2019-11510, impacting Pulse Secure SSL VPN, is being exploited in the wild. I've seen it being exploited today, a few hours ago for first time, via BinaryEdge. Timeline 24th April 2019 - Vendor advisory. 14th August 2019 - TLP Rainbow post. 20th August 2019 - exploit posted publicly. 22nd August 2019 - exploitation in wild. Pulse Secure is one of the "Zero Trust" secure SSL VPN systems where you get pwned by 1996 ../../ exploits.
  5. Two researchers have a talk upcoming at DefCon about SSL VPN vulnerabilities, and they've started (although not in the talk) by detailing a unauthenticated remote code execution vulnerability in Palo-Alto GlobalProtect, their VPN system: http://blog.orange.tw/2019/07/attacking-ssl-vpn-part-1-preauth-rce-on-palo-alto.html The short version is: - Bad vulnerability - Actually exploitable - Because it's on both your VPN and firewall box (Palo-Alto do both), the attacker owns your network via the internet - They released a patch for the issue a year ago, but didn't issue a CVE or tell people about the issues for whatever reason - so you want to check if you actually run a vulnerable version still. Vendor advisory here after I tweeted about it: https://securityadvisories.paloaltonetworks.com/Home/Detail/158
  6. Came across this on my travels: https://portswigger.net/daily-swig/webmin-backdoor-blamed-on-software-supply-chain-breach Webmin software was backdoored for over a year. If you're using one of those vulnerable versions, update now! According to shodan and some google dorks, there are quite a lot still vulnerable
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