Vulnerabilities

WP2SHELL Update

This morning I’ve started to see exploitation attempts on pwndefend.com (they all failed because like about 80% of sites (based on sampling) this site automatically patched, but also, this site has word fence, is fronted by Cloudflare.

Global Exposure

On the 18th (AM) I did sampling of about 3.5K hosts and found ~20% were not patched. The cyber apocalypse is not seemingly here today! (let alone the fact that if every WordPress site was popped, the world would probably not end)

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Threat Intel

WP2SHELL

Yesterday afternoon/early evening a patch for WordPress was released (7.0.2) which address two vulnerabilities which are named: WP2SHELL. This is a fast post (largely generated by Claude Opus) to provide some detail. For reference in our research we have found ~20% of WordPress sites still vulnerable as of a few hours ago (based on a sample), so this is a live scenario and it would be strongly advisable for organisations to take appropriate steps. This morning I’ve built a docker lab of a vulnerable WordPress site and demonstrated hash theft and web shell deployment to a vulnerable lab instance.

I’ve put some resources for people (use at own risk) into a repo: https://github.com/mr-r3b00t/wp2shell/

that includes a scanner, some info on the vulns and a PoC tool!

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Education

Who needs Mythos anyway! Vulnerability ‘fun’ with Unifi

Last night I found a disturbance in the cyber force… a premise that said 3x CVEs (which the vendor scored at 10.0) were alleged to not be 3 routes… this made no sense to me, why would a vendor release 3 CVEs with the MAXIMUM Score (see my last blog) which means: someone can remotely execute code/read data (remember if you leak key materials you can then craft a way to log in so you can get execution in more than one way). So I set off on mission to try and fix the problem; someone might have said something wrong on the internet!

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Defence

Offensive KEV Updates! CISA releases 38 more CVEs to…

Life in the vulnerability and exploit space is never dull

Spotted on twitter (thanks Danny!):

https://www.zdnet.com/article/cisa-warning-hackers-are-exploiting-these-36-significant-cybersecurity-vulnerabilities-so-patch-now/

CISA updates the known exploited vulnerabilities list (KEV) yesterday with another 38 updates!

That means an update is required for OFFESNIVE KEV!

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Defense

Exposed VMWARE vCenter Servers around the world (CVE-2021-22005)

There’s a new CVE in town but don’t think it’s the only problem you get when you expose administrative interfaces to the wild west of the internet (yeeha or something). Let’s go on a quick exploration of what the world looks like with the help of our friends at Shodan and then let’s see the ramblings of Dan when looking at how benign enumeration and exploration of services can work. Let’s get started looking at the world, a quick face analysis on Shodan with vmware as a product shows a hit or two, what we are going to focus on is vCenter but you know.. you might want to review your attack surfaces so any exposed services (damn people expose some risky stuff!) Read more “Exposed VMWARE vCenter Servers around the world (CVE-2021-22005)” →

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