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 breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected products
- Go standard library / os/exec0 – 1.18.8
- Go standard library / os/exec1.19.0-0 – 1.19.3
- Go standard library / syscall0 – 1.18.8
- Go standard library / syscall1.19.0-0 – 1.19.3
Updated 27m ago · 8 sources