漏洞信息
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Vulnerability Title
ExtremeXOS Privilege Escalation via Symlink Following in File Utilities
Vulnerability Description
The mv, cp, and rm file utilities exposed within the ExtremeXOS (EXOS) shell environment fail to safely canonicalize paths and follow symbolic links outside of the intended privilege boundary. An attacker with low-privilege CLI access can create a symbolic link that references a privileged filesystem location and then invoke the affected utilities to read, modify, or replace security-critical files outside of their authorized scope. Under certain conditions, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation is possible remotely by an attacker holding a low-privilege account, or locally via the serial console.
Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Vulnerability Title
Extreme Networks Switch Engine 后置链接漏洞
Vulnerability Description
Extreme Networks Switch Engine是美国Extreme Networks公司的一款网络设备操作系统。 Extreme Networks Switch Engine 31.7.4之前版本、32.0.0至32.7.4.15之前版本、33.0.0至33.1.100之前版本和33.2.0至33.7.1之前版本存在后置链接漏洞,该漏洞源于ExtremeXOS (EXOS) shell环境中的mv、cp和rm文件处理工具未能安全规范化路径,导致符号链接可超出预期权限边界,具有低权限CLI访问
CVSS Information
N/A
Vulnerability Type
N/A