January 29, 2024 at 05:07PM
Security researchers discovered about 45,000 vulnerable Jenkins instances online, susceptible to CVE-2023-23897, a critical flaw allowing remote code execution. The issue originates from an automatic file reading feature, potentially leading to arbitrary command execution. There are multiple public PoC exploits available, posing a significant threat to unpatched Jenkins servers globally. Administrators are urged to take immediate action.
After carefully reviewing the meeting notes, the key takeaways are as follows:
– Approximately 45,000 Jenkins instances are exposed online and vulnerable to CVE-2023-23897, a critical remote code execution (RCE) flaw, with multiple public proof-of-concept exploits available.
– The Jenkins project released versions 2.442 and LTS 2.426.3 on January 24, 2024, to fix the arbitrary file read problem associated with CVE-2023-23897.
– The flaw arises from a feature in the Jenkins CLI that allows attackers to read arbitrary files on the Jenkins controller’s file system, potentially giving them access to sensitive information and the ability to carry out various attacks.
– Security researchers have warned of multiple working exploits for CVE-2023-23897, increasing the risk for unpatched Jenkins servers, and there is evidence of genuine attempts at exploitation.
– Shadowserver reported that about 45,000 unpatched Jenkins instances have been identified, with a significant number of vulnerable instances located in China, the United States, Germany, India, France, and the UK.
Given the severity of the situation, administrators are advised to apply the available security updates immediately. For those unable to do so, consultation of the Jenkins security bulletin for mitigation recommendations and potential workarounds is recommended to address the vulnerability.
Please let me know if you require any further information or if there is anything else I can assist you with.