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Showing posts with label Acunetix vulnerability. Show all posts

FBI Issued a Warning to U.S Firms Concerning Iranian Hackers

 

The FBI issues a warning concerning Iranian hackers, posing as radical right organization Proud Boys during the 2020 presidential election, have now broadened operations, launching cyberattacks against a variety of industry divisions and spreading propaganda hostile to Saudi Arabia. 

"Over time, as Iranian operators have evolved both the strategic priorities and tradecraft, the hackers have matured into more proficient malicious attackers being capable of performing a whole spectrum of operations," read a Microsoft report.

Ransomware works by encrypting a device's data and making it inaccessible until the hacker receives a ransom payment. 

In a recent alert, the FBI stated, in addition to its election-related operation, the Emennet malicious attacker has been engaged in "conventional cyber exploitation activity," targeting industries such as news, transportation, tourism, oil and petrochemicals, telecoms, and financial services. It has been using VPNs to launch attacks on websites operated by certain software applications, such as WordPress, which cybercriminals can exploit to launch hacks in countries other than the United States, Europe, and the Middle East. 

The hackers employed multiple free source and commercial tools in activities, including SQLmap, Acunetix, DefenseCode, Wappalyzer, Dnsdumpster, Netsparker, wpscan, and Shodan, to mask location. The threat actor picked possible victims during the discovery phase of the hacking operations by browsing the web for prominent corporations representing various sectors. For initial access, the hackers would try to locate flaws in the program. 

"In certain cases, the goal may have been to target a large assortment of networks/websites inside a specific sector rather than a specific target company. Emennet would also attempt to discover hosting/shared hosting services in other scenarios," according to the FBI. 

Users must keep personal anti-virus and anti-malware products up to date, patch obsolete software, and make use of reliable web hosting companies, according to the authorities. In any case, Iran's state-sponsored hacker organizations aren't the only ones who have exploited the BIG-IP flaw.

Buffer Overflow vulnerability in Acunetix scanner allows to hack the noobs who attack your website

Danor Cohen, a Security researcher who recently discovered the 'WinRAR file spoofing vulnerability', has discovered one more zero day vulnerability.  This time it is Buffer Overflow vulnerability in one of the popular web application vulnerability scanner 'Acunetix'.

There is a feature in Acunetix that allows to scan the additional domains or subdomains detected during the scan.

"It learns about the external related domains from the external sources that appear at the scanned website, for example: "<a href=http://externalSource.com/ ></a>"

Danor found that if the 'external' source url's length is larger than 268Bytes, the Acunetix vulnerability scanner will get crashed.

For Ex:
 <A href= “http://AAAAAAAAAAAAAAAAAAAAAAAAAA...........AAAAA”>

Researcher managed to exploit this vulnerability and successfully launched an executable file(calc.exe). By modifiying the code, one can infect the computers of newbies with a malware who attempt to scan their websites.

More technical details are available at his blog post.

Here is Proof of concept video:


*Update*:
Acunetix says this vulnerability affects only the illegitimate(cracked) copies of Acunetix WVS.

"The blogger seems to have managed to pull his exploit by using a cracked version of v8. The cracked version, probably required the replacement of the official executable with a vulnerable one." Acunetix says.

"Once again we want to re-assure all users of legitimate installations of Acunetix WVS that they are in no danger, and are not affected by this at all"