CVE-2020-7877 — HIGH (8.0) — White Hats Nepal

Vulnerability Description

A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mastersoft	Zook Agent	2.0.6.1
Mastersoft	Zook Viewer	2.0.4.6
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-120

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36216Third Party Advisory
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36216Third Party Advisory

FAQ

What is CVE-2020-7877?

CVE-2020-7877 is a vulnerability with a CVSS score of 8.0 (HIGH). A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This...

How severe is CVE-2020-7877?

CVE-2020-7877 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7877?

Check the references section above for vendor advisories and patch information. Affected products include: Mastersoft Zook Agent, Mastersoft Zook Viewer, Microsoft Windows.