Vulnerability Name:

CVE-2021-23885 (CCN-197001)

Assigned:2021-02-16
Published:2021-02-16
Updated:2022-04-26
Summary:Privilege escalation vulnerability in McAfee Web Gateway (MWG) prior to 9.2.8 allows an authenticated user to gain elevated privileges through the User Interface and execute commands on the appliance via incorrect improper neutralization of user input in the troubleshooting page.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H)
7.8 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.0 High (CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-23885

Source: XF
Type: UNKNOWN
mcafeewebgateway-cve202123885-priv-esc(197001)

Source: CCN
Type: McAfee Security Bulletin ID: SB10349
Web Gateway update fixes a Privilege escalation vulnerability (CVE-2021-23885)

Source: CONFIRM
Type: Vendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10349

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mcafee:web_gateway:*:*:*:*:*:*:*:* (Version < 8.2.17)
  • OR cpe:/a:mcafee:web_gateway:*:*:*:*:*:*:*:* (Version >= 9.2 and < 9.2.8)
  • OR cpe:/a:mcafee:web_gateway:*:*:*:*:*:*:*:* (Version >= 10.0 and < 10.0.4)

    • Configuration CCN 1:
  • cpe:/a:mcafee:web_gateway:7.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.3.2.4:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.2.0.9:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.4.1:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.3.2.6:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:mcafee_web_gateway:7.8.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.8.1.5:*:*:*:*:*:*:*
  • OR cpe:/a:mcafee:web_gateway:7.8.2.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    mcafee web gateway *
    mcafee web gateway *
    mcafee web gateway *
    mcafee web gateway 7.3.2
    mcafee web gateway 7.4.0
    mcafee web gateway 7.3.2.4
    mcafee web gateway 7.2.0.9
    mcafee web gateway 7.4.1
    mcafee web gateway 7.3.2.6
    mcafee web gateway 7.0.0
    mcafee mcafee web gateway 7.8.1.0
    mcafee web gateway 7.8.1.5
    mcafee web gateway 7.8.2.0