Cybersecurity scientists have produced a proof-of-idea (PoC) code that exploits a not long ago disclosed critical flaw in the Apache OfBiz open-supply Business Resource Preparing (ERP) method to execute a memory-resident payload.
The vulnerability in question is CVE-2023-51467 (CVSS rating: 9.8), a bypass for another intense shortcoming in the identical software (CVE-2023-49070, CVSS rating: 9.8) that could be weaponized to bypass authentication and remotely execute arbitrary code.
Even though it was mounted in Apache OFbiz variation 18.12.11 unveiled last month, danger actors have been noticed attempting to exploit the flaw, focusing on vulnerable cases.
The latest findings from VulnCheck display that CVE-2023-51467 can be exploited to execute a payload specifically from memory, leaving small to no traces of malicious exercise.
Security flaws disclosed in Apache OFBiz (e.g., CVE-2020-9496) have been exploited by threat actors in the earlier, which include by danger actors affiliated with the Sysrv botnet. Yet another 3-12 months-previous bug in the application (CVE-2021-29200) has witnessed exploitation attempts from 29 distinctive IP addresses over the previous 30 times, for every details from GreyNoise.
What is actually extra, Apache OFBiz was also one particular of the initial solutions to have a general public exploit for Log4Shell (CVE-2021-44228), illustrating that it proceeds to be of interest to equally defenders and attackers alike.
CVE-2023-51467 is no exception, with specifics about a remote code execution endpoint (“/webtools/control/ProgramExport”) as well as PoC for command execution rising basically times right after community disclosure.
Even though security guardrails (i.e., Groovy sandbox) have been erected these kinds of that they block any tries to upload arbitrary web shells or run Java code by using the endpoint, the incomplete character of the sandbox indicates that an attacker could operate curl commands and get hold of a bash reverse shell on Linux systems.
“For an highly developed attacker, while, these payloads aren’t great,” VulnCheck’s Chief Technology Officer Jacob Baines mentioned. “They contact the disk and rely on Linux-distinct habits.”
The Go-centered exploit devised by VulnCheck is a cross-system option that functions on the two Windows and Linux as very well as will get around the denylist by using benefit of groovy.util.Eval functions to launch an in-memory Nashorn reverse shell as the payload.
“OFBiz is not broadly well-known, but it has been exploited in the previous. There is a reasonable offer of hype all-around CVE-2023-51467 but no community weaponized payload, which known as into problem if it was even feasible,” Baines claimed. “We have concluded that not only is it attainable, but we can attain arbitrary in memory code execution.”
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Some parts of this article are sourced from:
thehackernews.com
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