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TwcertCVE-2024-40722

HistoryAug 02, 2024 - 11:16 a.m.

CVE-2024-40722

2024-08-0211:16:43

CWE-787

CWE-121

twcert

web.nvd.nist.gov

tcbservisign

windows version

changing information technology

buffer overflow

stack-based

remote attackers

spoofed website

unauthenticated

server-side input validation

cve-2024-40722

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

17.6%

JSON

The specific API in TCBServiSign Windows Version from CHANGING Information Technology does does not properly validate the length of server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the TCBServiSign, temporarily disrupting its service.

Affected configurations

Nvd

Node

changingtectcb_servisignRange<1.0.24.0318windows

VendorProductVersionCPE
changingtectcb_servisign*cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:*

Vendor	Product	Version	CPE
changingtec	tcb_servisign	*	cpe:2.3:a:changingtec:tcb_servisign::::::windows::*

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "TCBServiSign Windows Version",
    "vendor": "CHANGING Information Technology",
    "versions": [
      {
        "lessThan": "1.0.24.0318",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

References

www.twcert.org.tw/en/cp-139-7973-e10c6-2.html

www.twcert.org.tw/tw/cp-132-7967-9efdf-1.html

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

17.6%

JSON

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