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Human attacker outpaces AI-powered attacks, showcasing the importance of human expertise in the realm of cybersecurity. Follow us for the latest cybersecurity news and expert insights.
A skilled attacker successfully exploited a Marimo vulnerability, reaching an SSH bastion host in just 8 seconds. The vulnerability, CVE-2026-39987, is a pre-authenticated remote code execution (RCE) flaw impacting all versions of Marimo. The attack was carried out by a single operator who leveraged a custom Python toolkit to bypass security measures. The attack's speed was remarkable, considering it was carried out by a human operator without AI assistance. A similar vulnerability was recently exploited in a cryptomining campaign that compromised 3,562 Redis servers. The incident highlights the importance of human expertise in cybersecurity, particularly in the face of rapidly evolving threats.
In a shocking display of human ingenuity and speed, a skilled attacker has successfully exploited a Marimo vulnerability, reaching an SSH bastion host in a mere eight seconds. This feat, achieved without the aid of artificial intelligence (AI) agents, serves as a stark reminder of the importance of human expertise in the realm of cybersecurity.
The vulnerability, CVE-2026-39987, has been identified as a pre-authenticated remote code execution (RCE) flaw, impacting all versions of Marimo. The attack, carried out by a single operator, leveraged a custom Python toolkit to bypass security measures and gain access to the vulnerable system. What's particularly noteworthy about this incident is the speed at which the attacker was able to exploit the vulnerability, a pace that would be considered "machine speed" in the context of AI-powered attacks.
The entire attack chain, which lasted from 12:52 p.m. to 9:50 p.m., involved a series of intricate steps, including the deployment of an end-to-end credential-pivot chain, the exploitation of a Marimo flaw, and the subsequent establishment of SSH access to the bastion host. The attacker's tradecraft converged on a single backgrounded Python3 invocation, which pulled the credential, fetched the SSH key from Secrets Manager, wrote it to disk, and authenticated to the bastion over SSH in a single shot.
This impressive display of human skill and speed has been attributed to the fact that the attacker was able to build the toolkit from scratch, without the aid of any AI agents. Furthermore, the attacker's ability to evade defenders' detections, including a trap that every agentic threat actor (ATA) would have fallen into, serves as a testament to their expertise and ingenuity.
In contrast, AI-powered attacks have been shown to be faster, but not necessarily more effective. According to Sysdig, the speed of AI-powered attacks is expected to continue to increase, but they have not yet replaced human operators who possess the skills and expertise necessary to carry out complex attacks.
This incident serves as a reminder of the importance of human expertise in the realm of cybersecurity, particularly in the face of rapidly evolving threats. As AI-powered attacks continue to gain speed and sophistication, it is essential that security professionals develop and hone their skills to counter these threats.
The findings of this incident have been highlighted by Hunt.io, a cloud security company, which discovered details of a cryptomining campaign that has compromised 3,562 Redis servers. The primary exploitation method used in this campaign involved the use of the SLAVEOF command to smuggle attacker-controlled content onto a target Redis server, resulting in the deployment of an XMRig miner.
The vulnerability, CVE-2026-39987, has been identified as a pre-authenticated remote code execution (RCE) flaw, impacting all versions of Marimo. The attack, carried out by a single operator, leveraged a custom Python toolkit to bypass security measures and gain access to the vulnerable system. What's particularly noteworthy about this incident is the speed at which the attacker was able to exploit the vulnerability, a pace that would be considered "machine speed" in the context of AI-powered attacks.
The entire attack chain, which lasted from 12:52 p.m. to 9:50 p.m., involved a series of intricate steps, including the deployment of an end-to-end credential-pivot chain, the exploitation of a Marimo flaw, and the subsequent establishment of SSH access to the bastion host. The attacker's tradecraft converged on a single backgrounded Python3 invocation, which pulled the credential, fetched the SSH key from Secrets Manager, wrote it to disk, and authenticated to the bastion over SSH in a single shot.
This impressive display of human skill and speed has been attributed to the fact that the attacker was able to build the toolkit from scratch, without the aid of any AI agents. Furthermore, the attacker's ability to evade defenders' detections, including a trap that every agentic threat actor (ATA) would have fallen into, serves as a testament to their expertise and ingenuity.
In contrast, AI-powered attacks have been shown to be faster, but not necessarily more effective. According to Sysdig, the speed of AI-powered attacks is expected to continue to increase, but they have not yet replaced human operators who possess the skills and expertise necessary to carry out complex attacks.
This incident serves as a reminder of the importance of human expertise in the realm of cybersecurity, particularly in the face of rapidly evolving threats. As AI-powered attacks continue to gain speed and sophistication, it is essential that security professionals develop and hone their skills to counter these threats.
The findings of this incident have been highlighted by Hunt.io, a cloud security company, which discovered details of a cryptomining campaign that has compromised 3,562 Redis servers. The primary exploitation method used in this campaign involved the use of the SLAVEOF command to smuggle attacker-controlled content onto a target Redis server, resulting in the deployment of an XMRig miner.
In conclusion, the incident highlights the importance of human expertise in the realm of cybersecurity, particularly in the face of rapidly evolving threats. As AI-powered attacks continue to gain speed and sophistication, it is essential that security professionals develop and hone their skills to counter these threats.
Related Information:
https://www.ethicalhackingnews.com/articles/Human-Attacker-Outpaces-AI-Powered-Attacks-A-Glimpse-into-the-Speed-and-Skill-of-Human-Exploitation-ehn.shtml
https://thehackernews.com/2026/09/human-attacker-exploits-marimo-rce.html
Published: Tue Sep 15 07:25:06 2026 by llama3.2 3B Q4_K_M
