Multiple vulnerabilities in Juniper Networks Junos OS on SRX Series

1) Input validation error

EUVDB-ID: #VU79687

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-36844

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to modify application behavior.

The vulnerability exists due to insufficient validation of user-supplied input in J-Web. A remote attacker can modify values of certain PHP environments variables and modify application's behavior.

Successful exploitation of the vulnerability can lead to remote code execution.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 22.4R2

External links

http://supportportal.juniper.net/JSA72300

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

2) Input validation error

EUVDB-ID: #VU79688

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-36845

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to modify application behavior.

The vulnerability exists due to insufficient validation of user-supplied input in J-Web. A remote attacker can modify values of certain PHP environments variables and modify application's behavior.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 22.4R2

External links

http://supportportal.juniper.net/JSA72300
http://packetstormsecurity.com/files/download/174865/junos_phprc_auto_prepend_file.rb.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Arbitrary file upload

EUVDB-ID: #VU79689

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-36846

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

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authentication when uploading files via J-Web. A remote non-authenticated attacker can upload a malicious file and execute it on the system.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 22.4R2

External links

http://supportportal.juniper.net/JSA72300

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

4) Arbitrary file upload

EUVDB-ID: #VU79690

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-36847

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

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authentication when uploading files via J-Web. A remote non-authenticated attacker can upload a malicious file and execute it on the system.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 22.4R2

External links

http://supportportal.juniper.net/JSA72300

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

5) Arbitrary file upload

EUVDB-ID: #VU80622

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-36851

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authentication when uploading files via J-Web. A remote non-authenticated attacker can upload a malicious file and execute it on the system.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 22.4R2

External links

http://supportportal.juniper.net/s/article/2023-08-Out-of-Cycle-Security-Bulletin-Junos-OS-SRX-Series-and-EX-Series-Multiple-vulnerabilities-in-J-Web-can-be-combined-to-allow-a-preAuth-Remote-Code-Execution

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.