VMware ESXi servers are massively hacked worldwide due to heap-based buffer overflow in OpenSLP

Subject: VMware ESXi servers are massively hacked worldwide due to heap-based buffer overflow in OpenSLP


Good day from Singapore,


I am sharing this article for more awareness.


Article: Hackers are mass infecting servers worldwide by exploiting a patched hole

Link: https://arstechnica.com/information-technology/2023/02/hackers-are-mass-infecting-servers-worldwide-by-exploiting-a-patched-hole/


[QUOTE] 


The vulnerability being exploited to infect the servers is CVE-2021-21974, which stems from a heap-based buffer overflow in OpenSLP, an open network-discovery standard that’s incorporated into ESXi. When VMware patched the vulnerability in February 2021, the company warned it could be exploited by a malicious actor with access to the same network segment over port 427. The vulnerability had a severity rating of 8.8 out of a possible 10. Proof-of-concept exploit code and instructions for using it became available a few months later.


[/QUOTE]


Thank you.


Regards,


Mr. Turritopsis Dohrnii Teo En Ming

Targeted Individual in Singapore

Blogs:

https://tdtemcerts.blogspot.com

https://tdtemcerts.wordpress.com




REFERENCES

============


[1] https://sourceforge.net/p/openslp/mailman/message/37776081/


[2] https://www.mail-archive.com/openslp-users@lists.sourceforge.net/msg00299.html


[3] https://sourceforge.net/p/openslp/mailman/message/37776084/


[4] https://www.mail-archive.com/openslp-devel@lists.sourceforge.net/msg00475.html

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