SB2019092326 - OS Command Injection in Radare radare2

Description

This security bulletin contains information about 1 vulnerability.

1) OS Command Injection (CVE-ID: CVE-2019-16718)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In radare2 before 3.9.0, a command injection vulnerability exists in bin_symbols() in libr/core/cbin.c. By using a crafted executable file, it's possible to execute arbitrary shell commands with the permissions of the victim. This vulnerability is due to an insufficient fix for CVE-2019-14745 and improper handling of symbol names embedded in executables.

Remediation

Install update from vendor's website.

References

• https://github.com/radareorg/radare2/commit/5411543a310a470b1257fb93273cdd6e8dfcb3af
• https://github.com/radareorg/radare2/commit/dd739f5a45b3af3d1f65f00fe19af1dbfec7aea7
• https://github.com/radareorg/radare2/compare/3.8.0...3.9.0