Improper Authentication in Ivanti Avalanche



| Updated: 2023-05-16
Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2022-44574
CVE-2023-28125
CVE-2023-28126
CVE-2023-28127
CVE-2023-28128
CWE-ID CWE-287
CWE-22
CWE-434
Exploitation vector Network
Public exploit Public exploit code for vulnerability #5 is available.
Vulnerable software
 Avalanche
Server applications / SCADA systems

Vendor Ivanti

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

Updated 26.04.2023

Added vulnerabilities #2-5

1) Improper Authentication

EUVDB-ID: #VU73225

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-44574

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the Remote Control Server RCServlet servlet. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-228/
https://forums.ivanti.com/s/article/Avalanche-ZDI-CAN-19513-Security-Advisory?language=en_US


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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) Improper Authentication

EUVDB-ID: #VU75509

Risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28125

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the InfoRail service. A remote user can bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-453/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US


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) Improper Authentication

EUVDB-ID: #VU75510

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28126

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the exposure of a dangerous method or function to unprivileged users within the GetSettings class. A remote user can bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-454/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US


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.

4) Path traversal

EUVDB-ID: #VU75511

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28127

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the getLogFile function. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-455/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US


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.

5) Arbitrary file upload

EUVDB-ID: #VU75513

Risk: Low

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2023-28128

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

Exploit availability: Yes

Description

The vulnerability allows a remote user to compromise vulnerable system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-456/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US


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. However, a fully functional exploit for this vulnerability is available.



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