Memory corruption in Microsoft Office - CVE-2017-8570

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing Microsoft Office documents. A remote unauthenticated attacker can create a specially crafted Microsoft Office document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2017-8570

Links to Public Exploits and PoC-codes

• Exploit #8205 - rtfkit (generate RTF exploit payload. uses cve-2017-11882, cve-2017-8570, cve-2018-0802, and cve-2018-8174.) (August 2, 2022)
• Exploit #6379 - Microsoft Office - 'Composite Moniker Remote Code Execution (June 17, 2021)
• Exploit #4843 - rtfkit (generate RTF exploit payload. uses cve-2017-11882, cve-2017-8570, cve-2018-0802, and cve-2018-8174.) (November 17, 2020)
• Exploit #2371 - CVE-2017-8759 (NCC Group's analysis and exploitation of CVE-2017-8759 along with further refinements) (April 7, 2020)
• Exploit #2085 - CVE-2017-8570 (Proof of Concept exploit for CVE-2017-8570) (March 18, 2020)

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8570

Related Security Bulletins

• Multiple vulnerabilities in Microsoft Office