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KrcertCVE-2021-26634

HistoryJun 02, 2022 - 2:15 p.m.

CVE-2021-26634

2022-06-0214:15:28

CWE-89

CWE-434

CWE-288

krcert

web.nvd.nist.gov

maxboard

insufficient input validation

sql injection

file upload

privilege escalation

cve-2021-26634

nvd

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.002

Percentile

56.3%

JSON

SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.

Affected configurations

Nvd

Node

maxbmaxboardRange<1.9.6

AND

linuxlinux_kernelMatch-

VendorProductVersionCPE
maxbmaxboard*cpe:2.3:a:maxb:maxboard:*:*:*:*:*:*:*:*
linuxlinux_kernel-cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
maxb	maxboard	*	cpe:2.3:a:maxb:maxboard::::::::
linux	linux_kernel	-	cpe:2.3:o:linux:linux_kernel:-:::::::*

CNA Affected

[
  {
    "platforms": [
      "Linux"
    ],
    "product": "Maxboard",
    "vendor": "Max Yi",
    "versions": [
      {
        "lessThanOrEqual": "1.9.5.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66746

Social References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.002

Percentile

56.3%

JSON

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