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[email protected]CVE-2021-25269

HistoryNov 26, 2021 - 3:15 p.m.

CVE-2021-25269

2021-11-2615:15:07

CWE-428

[email protected]

web.nvd.nist.gov

cve-2021-25269

local admin

hmpa service

sophos intercept x

exploit prevention

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.6 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

12.5%

JSON

A local administrator could prevent the HMPA service from starting despite tamper protection using an unquoted service path vulnerability in the HMPA component of Sophos Intercept X Advanced and Sophos Intercept X Advanced for Server before version 2.0.23, as well as Sophos Exploit Prevention before version 3.8.3.

Affected configurations

NVD

Node

sophosexploit_preventionRange<3.8.3

sophosintercept_x_endpointRange<2.0.23

sophosintercept_x_for_serverRange<2.0.23

CPENameOperatorVersion
sophos:exploit_preventionsophos exploit preventionlt3.8.3
sophos:intercept_x_endpointsophos intercept x endpointlt2.0.23
sophos:intercept_x_for_serversophos intercept x for serverlt2.0.23

CPE	Name	Operator	Version
sophos:exploit_prevention	sophos exploit prevention	lt	3.8.3
sophos:intercept_x_endpoint	sophos intercept x endpoint	lt	2.0.23
sophos:intercept_x_for_server	sophos intercept x for server	lt	2.0.23

CNA Affected

[
  {
    "product": "Intercept X Advanced",
    "vendor": "Sophos",
    "versions": [
      {
        "lessThan": "2.0.23",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Intercept X Advanced for Server",
    "vendor": "Sophos",
    "versions": [
      {
        "lessThan": "2.0.23",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Sophos Exploit Prevention",
    "vendor": "Sophos",
    "versions": [
      {
        "lessThan": "3.8.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.sophos.com/en-us/security-advisories/sophos-sa-20211126-ixa-hmpa-local-dos

Social References

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.6 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

12.5%

JSON

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