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KrcertCVELIST:CVE-2020-7882

HistoryNov 22, 2021 - 2:43 p.m.

CVE-2020-7882 anySign directory traversal vulnerability

2021-11-2214:43:26

CWE-24

krcert

www.cve.org

cve-2020-7882

anysign

directory traversal

vulnerability

authorization certification

path traversal characters

getpfxfolderlist function

deletion of files

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

65.0%

JSON

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. ‘…/…/…/’)

CNA Affected

[
  {
    "platforms": [
      "Windows"
    ],
    "product": "anySign4PC",
    "vendor": "Hancomwith",
    "versions": [
      {
        "status": "affected",
        "version": "1.1.1.0"
      },
      {
        "status": "affected",
        "version": "1.1.2.6"
      },
      {
        "status": "affected",
        "version": "1.1.2.7"
      }
    ]
  }
]

References

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

65.0%

JSON

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