These vulnerabilities underscore the importance of maintaining robust privilege separation mechanisms within PCP to mitigate the potential for unauthorized privilege escalation. Specifically, this vulnerability may lead to the compromise of PCP user isolation and facilitate local PCP-to-root exploits, particularly through symlink attacks. This disparity in privilege levels poses a risk when privileged root processes interact with directories or directory trees owned by unprivileged PCP users. While certain services operate within the confines of limited PCP user/group privileges, others are granted full root privileges. During the extraction process, the archiver could follow symlinks outside of the intended directory, which could be utilized to run arbitrary commands on the target system.Ī vulnerability has been identified in the Performance Co-Pilot (PCP) package, stemming from the mixed privilege levels utilized by systemd services associated with PCP. This issue could allow a remote unauthenticated attacker to trick a user into opening a specially crafted archive. After a scan, the Engine would follow the links and remove the filesĪ path traversal vulnerability was found in the CPIO utility. This was achieved by adding an entry to the registry under the Trellix ENS registry folder with a symbolic link to files that the user wouldn't normally have permission to. Fixed in Nomad 1.7.4, 1.6.7, 1.5.14.Ī symbolic link manipulation vulnerability in Trellix Anti-Malware Engine prior to the January 2024 release allows an authenticated local user to potentially gain an escalation of privileges. HashiCorp Nomad and Nomad Enterprise 1.5.13 up to 1.6.6, and 1.7.3 template renderer is vulnerable to arbitrary file write on the host as the Nomad client user through symlink attacks. Disabling follow_symlinks and using a reverse proxy are encouraged mitigations. This can lead to directory traversal vulnerabilities, resulting in unauthorized access to arbitrary files on the system, even when symlinks are not present. When 'follow_symlinks' is set to True, there is no validation to check if reading a file is within the root directory. Additionally, the option 'follow_symlinks' can be used to determine whether to follow symbolic links outside the static root directory. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. This issue is patched in versions 0.21.1, 0.20.2, and 0.19.10.Īiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In prior to versions 0.21.1, 0.20.2, and 0.19.10, paths checks with the `resolveSafeChildPath` utility were not exhaustive enough, leading to risk of path traversal vulnerabilities if symlinks can be injected by attackers. Is a common functionality library for backends for Backstage, an open platform for building developer portals.
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