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attackerkbAttackerKBAKB:5BE82C1E-061F-4C04-93A2-1C15BBDE9337
HistoryApr 23, 2021 - 12:00 a.m.

CVE-2021-22893

2021-04-2300:00:00
attackerkb.com
218

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

10

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

10

Confidence

High

EPSS

0.961

Percentile

99.5%

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.

Recent assessments:

awesom3alex at April 21, 2021 2:01pm UTC reported:

Pulse Secure Pulse Connect Secure 9.1.R.11.3 and earlier are affected by an authenticated bypass vulnerability, CVE-2021-22893, when exploited it is very likely the threat actor can achieve remote code execution. Exploitation has been observed by APT 5 (UNC2630) and UNC2717.

A Proof-of-Concept exploit is not publicly available.

Assessed Attacker Value: 5
Assessed Attacker Value: 5Assessed Attacker Value: 5

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

10

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

10

Confidence

High

EPSS

0.961

Percentile

99.5%