Multipl vulnerabilities in Pulse Connect Secure



Published: 2021-05-05
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE ID CVE-2021-22894
CVE-2021-22899
CVE-2021-22900
CWE ID CWE-119
CWE-78
CWE-434
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Pulse Connect Secure
Server applications / Remote access servers, VPN

Vendor Pulse Secure

Security Advisory

1) Buffer overflow

Risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-22894

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Pulse Connect Secure Collaboration Suite. A remote user can trigger memory corruption and execute arbitrary code on the target system as the root user via a maliciously crafted meeting room.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1, 9.0R2, 9.0R2.1, 9.0R3, 9.0R3.1, 9.0R3.2, 9.0R3.4, 9.0R3.5, 9.0R4, 9.0R4.1, 9.0R5.0, 9.0R6.0, 9.1R1, 9.1R2, 9.1R3, 9.1R4, 9.1R4.1, 9.1R4.2, 9.1R4.3, 9.1R5, 9.1R6, 9.1R7, 9.1R8, 9.1R8.1, 9.1R8.2, 9.1R8.4, 9.1R9, 9.1R9.1, 9.1R9.2, 9.1R10, 9.1R10.0, 9.1R10.2, 9.1R11, 9.1R11.0, 9.1R11.1, 9.1R11.3

CPE External links

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) OS Command Injection

Risk: Medium

CVSSv3.1: 7.7 [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] [PCI]

CVE-ID: CVE-2021-22899

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote user can send a specially crafted request and execute arbitrary OS commands on the target system via Windows File Resource Profiles.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1, 9.0R2, 9.0R2.1, 9.0R3, 9.0R3.1, 9.0R3.2, 9.0R3.4, 9.0R3.5, 9.0R4, 9.0R4.1, 9.0R5.0, 9.0R6.0, 9.1R1, 9.1R2, 9.1R3, 9.1R4, 9.1R4.1, 9.1R4.2, 9.1R4.3, 9.1R5, 9.1R6, 9.1R7, 9.1R8, 9.1R8.1, 9.1R8.2, 9.1R8.4, 9.1R9, 9.1R9.1, 9.1R9.2, 9.1R10, 9.1R10.0, 9.1R10.2, 9.1R11, 9.1R11.0, 9.1R11.1, 9.1R11.3

CPE External links

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Arbitrary file upload

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-22900

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of archives within the file upload feature. A remote authenticated administrator can upload a malicious file and execute it on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1, 9.0R2, 9.0R2.1, 9.0R3, 9.0R3.1, 9.0R3.2, 9.0R3.4, 9.0R3.5, 9.0R4, 9.0R4.1, 9.0R5.0, 9.0R6.0, 9.1R1, 9.1R2, 9.1R3, 9.1R4, 9.1R4.1, 9.1R4.2, 9.1R4.3, 9.1R5, 9.1R6, 9.1R7, 9.1R8, 9.1R8.1, 9.1R8.2, 9.1R8.4, 9.1R9, 9.1R9.1, 9.1R9.2, 9.1R10, 9.1R10.0, 9.1R10.2, 9.1R11, 9.1R11.0, 9.1R11.1, 9.1R11.3

CPE External links

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###