A high-severity flaw impacting choose 4-Religion routers has come below lively exploitation within the wild, in line with new findings from VulnCheck.
The vulnerability, tracked as CVE-2024-12856 (CVSS rating: 7.2), has been described as an working system (OS) command injection bug affecting router fashions F3x24 and F3x36.
The severity of the shortcoming is decrease as a consequence of the truth that it solely works if the distant attacker is ready to efficiently authenticate themselves. Nevertheless, if the default credentials related to the routers haven’t been modified, it may lead to unauthenticated OS command execution.
Within the assault detailed by VulnCheck, the unknown menace actors have been discovered to leverage the router’s default credentials to set off exploitation of CVE-2024-12856 and launch a reverse shell for persistent distant entry.
The exploitation try originated from the IP tackle 178.215.238[.]91, which has been beforehand utilized in reference to assaults in search of to weaponize CVE-2019-12168, one other distant code execution flaw affecting 4-Religion routers. Based on menace intelligence agency GreyNoise, efforts to take advantage of CVE-2019-12168 have been recorded as lately as December 19, 2024.
“The assault will be carried out in opposition to, at the least, the 4-Religion F3x24 and F3x36 over HTTP utilizing the /apply.cgi endpoint,” Jacob Baines mentioned in a report. “The programs are weak to OS command injection within the adj_time_year parameter when modifying the gadget’s system time through submit_type=adjust_sys_time.”
Data from Censys exhibits that there are over 15,000 internet-facing units. There’s some proof suggesting that assaults exploiting the flaw might have been ongoing since at the least early November 2024.
There’s presently no details about the provision of patches, though VulnCheck acknowledged that it responsibly reported the flaw to the Chinese language firm on December 20, 2024. The Hacker Information has reached out to 4-Religion for remark previous to the publication of this story and can replace the piece if we hear again.
