Any info about this ? ZDI-23-710 CVE-2023-32154

RADVD Out-Of-Bounds Write Remote Code Execution Vulnerability

https://www.zerodayinitiative.com/advisories/ZDI-23-710/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32154

12/09/22 – ZDI reported the vulnerability to the vendor during Pwn2Own Toronto.

I guess Mikrotik has its own implementation and is not effected.

It’s an specific RouterOS vulnerability

This one seems particularly bad vulnerability, especially if it’s in the router advertisement/neighbor discovery as described, as these are active by default and left enabled by most users:

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Mikrotik RouterOS. > Authentication is not required to exploit this vulnerability.

The specific flaw exists within the > Router Advertisement Daemon> . The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. > An attacker can leverage this vulnerability to execute code in the context of root.

Is this a joke?

There is is no technical analysis, no info if it concerns RoS v6 or V7, and lastly CVE-2023-32154 does not even appear to be registered with NIST…

i think details are not revealed until a fix is released/confirmed, to prevent mass exploitation

https://en.wikipedia.org/wiki/Coordinated_vulnerability_disclosure

Oh, my fault… :flushed_face: I just read “radvd” and did not follow the links. :upside_down_face:

Well, we will see… Let’s hope we will have results in the coming days.

Well, then it’s either a leak at NIST (cve) or a fake.

Blog entry following soon, together with RouterOS upgrade in all channels. Upgrade needed if using IPv6 advertisement settings.

So, for be clear, if is

/ipv6 settings
set accept-router-advertisements=no

no worry…?

ONLY affected if:

ipv6/settings/ set accept-router-advertisemnets=yes

or

ipv6/settings/set forward=no accept-router-advertisemnets=yes-if-forwarding-disabled

Well, I have already configured all devices with this setting (set accept-router-advertisements=no) from the beginning :wink:

Yes, it is certainly not normal to have it on. Somebody coud have it on by mistake, or in very specific scenarios.

If I do not remember bad the default on both v6 and v7 is accept-router-advertisements=yes-if-forwarding-disabled and forward=yes


Sorry, is also included 6.48.6 (long-term) and 6.49.7 (stable), over the 7.9 (stable) / 7.10beta5 (development)?
Thanks.

RouterOS 7.10beta7, 7.9.1, 6.49.8 coming soon

No hope on 6.48.7?

Blog? I did not know it still existed…

blog = new help docs?

Is it correct this is already known for over 6 months ?

No, blog = https://blog.mikrotik.com/
But nothing has been posted there for nearly two years…