CVE-2022-41716 — Improper Neutralization of Null Byte or NUL Character in Standard Library OS Exec
Severity
7.5HIGHNVD
EPSS
0.0%
top 97.76%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 2
Latest updateNov 8
Description
Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6