Buffer overflow in Mastersoft Zook Agent
CVE-2020-7877
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Mastersoft Zook Agent — versions 2.0.6.1
- Mastersoft Zookagentsetup.exe — versions 2.0.6.1
- Mastersoft Zook Viewer — versions 2.0.4.6
- Mastersoft Zookviewer Setup.exe — versions 2.0.4.6
- Microsoft Windows
Weakness classification (CWE)
References
- www.boho.or.kr/krcert/secNoticeView.do (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7877?
- CVE-2020-7877 is a high-severity vulnerability in Mastersoft Zook Agent, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.0/10. Published 2021-09-07.
- How severe is CVE-2020-7877?
- High severity. CVSS v3 base score is 8.0 out of 10.