AutoJack Attack Lets One Web Page Hijack AI Agent for Host Code Execution
Microsoft researchers have detailed an exploit chain, named AutoJack, that turns an AI browsing agent into a delivery vehicle for remote code execution
Remote code execution lets attackers run commands on a target system, enabling full compromise; patch exposed software and restrict privileges.
Search across headline titles and summaries.
Background for this topic.
Remote code execution (RCE) is the ability of an attacker to make a system run attacker-chosen code from a remote position, usually by exploiting a flaw in a network-facing application, service, protocol, or the processing of untrusted content. Unlike simple unauthorized access, successful RCE can run with the privileges of the affected process, enabling actions such as accessing data, changing configuration, disrupting a service, establishing persistence, or moving to other systems. Exploitability depends on factors including network reachability, authentication requirements, configuration, and whether execution is constrained.
Defenders should prioritize exposed RCE vulnerabilities in vulnerability management: inventory reachable assets, apply fixes or vendor mitigations, and restrict access or disable vulnerable functionality where patching is not immediately possible. Least privilege and service isolation limit the damage if exploitation succeeds. Secure input handling, safe deserialization, and avoiding unnecessary shell invocation reduce common attack paths. Monitoring for unusual process creation and outbound connections can support detection; suspected exploitation warrants prompt investigation, preservation of relevant logs, credential rotation where appropriate, and checks for persistence.
Microsoft researchers have detailed an exploit chain, named AutoJack, that turns an AI browsing agent into a delivery vehicle for remote code execution
AutoJack is a novel exploit chain showing how a single malicious webpage can turn an AI browsing agent into a remote code execution vector on the host machine. By abusing trust in localhost, missing authentication, and unsafe parameter handling, attackers can trigger arbitrary process execution through AutoGen Studio’s MCP WebSocket. The research highlights a broader pattern - when agents can browse untrusted content and access local services, traditional boundaries like localhost are no longer secure. The post AutoJack: How a single page can RCE the host running your AI agent appeared first on Microsoft Security Blog.
F5 has released security updates to address two critical security flaws in NGINX Open Source that could be exploited to achieve code execution on affected systems
A pre-authentication remote code execution (RCE) chain in Oracle PeopleSoft PeopleTools abuses the Integration Broker's PSIGW gateway to execute code inside the application server's Java virtual machine (JVM), evading behavioral and network sensors.