Apache - Critical Vulnerability exploiting High-Impact Sites

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Apache - Critical Vulnerability exploiting High-Impact Sites

Postby Evan » 10 Mar 2017, 10:26

In a string of attacks that have escalated over the past 48 hours, hackers are actively exploiting a critical vulnerability that allows them to take almost complete control of Web servers used by banks, government agencies, and large Internet companies.

The code-execution bug resides in the Apache Struts 2 Web application framework and is trivial to exploit. Although maintainers of the open source project patched the vulnerability on Monday, it remains under attack by hackers who are exploiting it to inject commands of their choice into Struts servers that have yet to install the update, researchers are warning. Making matters worse, at least two working exploits are publicly available.

"If you run it against a vulnerable application, the result will be the remote execution of commands with the user running the server," Vicente Motos wrote of one of the exploits in a post published late Wednesday afternoon on the Hack Players website. "We have dedicated hours to reporting to companies, governments, manufacturers, and even individuals to patch and correct the vulnerability as soon as possible, but the exploit has already jumped to the big pages of 'advisories,' and massive attempts to exploit the Internet have already been observed."

Researchers at Cisco Systems said they are seeing a "high number of exploitation events" by hackers attempting to carry out a variety of malicious acts. One series of commands that attackers are injecting into webpages stops the firewall protecting the server and then downloads and executes malware of the attacker's choice. The payloads include "IRC bouncers," which allow the attackers to hide their real IP address during Internet chats; denial-of-service bots; and various other packages that conscript a server into a botnet.



https://arstechnica.com/security/2017/0 ... act-sites/
Evan
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