Lucene search

NLOKCVELIST:CVE-2023-5760

HistoryNov 08, 2023 - 4:36 p.m.

CVE-2023-5760 Time-of-check to time-of-use (TOCTOU) bug leads to full local privilege escalation.

2023-11-0816:36:29

CWE-367

NLOK

www.cve.org

toctou

local privilege escalation

ioctl

avast/avg antivirus

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

Percentile

5.1%

JSON

A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Windows"
    ],
    "product": "Avast/Avg Antivirus",
    "vendor": "Avast/AVG",
    "versions": [
      {
        "status": "affected",
        "version": " 23.8"
      }
    ]
  }
]

References

support.norton.com/sp/static/external/tools/security-advisories.html

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

Percentile

5.1%

JSON

Related for CVELIST:CVE-2023-5760