Mitsubishi Electric MELSOFT iQ AppPortal update for Apache HTTP server
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-26377 CVE-2022-31813 |
| CWE-ID | CWE-444 CWE-287 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
MELSOFT iQ AppPortal Client/Desktop applications / Software for system administration |
| Vendor | Mitsubishi Electric |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Inconsistent interpretation of HTTP requests
EUVDB-ID: #VU64078
Risk: Medium
CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2022-26377
CWE-ID:
CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests in mod_proxy_ajp. A remote attacker can send a specially crafted HTTP request to the server and smuggle requests to the AJP server it forwards requests to.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
MitigationInstall update from vendor's website.
Vulnerable software versionsMELSOFT iQ AppPortal: before 1.32J
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-23-052-01
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?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Improper Authentication
EUVDB-ID: #VU64089
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-31813
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in mod_proxy implementation, where the web server may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. A remote attacker can bypass IP based authentication on the origin server/application and gain access to otherwise restricted functionality.
Install update from vendor's website.
Vulnerable software versionsMELSOFT iQ AppPortal: before 1.32J
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-23-052-01
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?
No. We are not aware of malware exploiting this vulnerability.
