CVE-2020-7882: anySign directory traversal vulnerability

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-22 · updated 2026-06-17
Weakness: CWE-24

Description

Using the parameter of getPFXFolderList function, attackers can see the information of authorization certification and delete the files. It occurs because the parameter contains path traversal characters(ie. '../../../')

Affected products

Hancomwith anySign4PC: 1.1.1.0, 1.1.2.6, 1.1.2.7

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36344
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36344

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