JVN#40523785
Mini Thread vulnerable to cross-site scripting
Overview
Mini Thread provided by Flash CGI contains a cross-site scripting vulnerability.
Vendor Information
Flash CGI (according to the original report submitted by the reporter)
Mini Thread Version 3.33βi (according to the original report submitted by the reporter)
Description
Mini Thread <http://www.flashcgi.net/> provided by Flash CGI (according to the original report submitted by the reporter) is a CGI script for creating a bulletin board system (BBS).
Mini Thread contains a cross-site scripting vulnerability (CWE-79).
Impact
An arbitrary script may be executed on the web browser of the user accessing the website that uses the product.
Solution
Consider stop using Mini Thread Version 3.33βi
Since the developer was unreachable, existence of any mitigations is unknown.
Vendor Opinion
None provided
JPCERT/CC Addendum
During the meeting of Committee for authorizing the disclosure of unresolved vulnerabilities held on December 20, 2023, it was judged that an advisory for this vulnerability shall be disclosed since all the criteria and conditions described below which are stated in Standards for Handling Vulnerability related Information of Software Products and Other and Information Security Early Warning Partnership Guideline have been satisfied.
- The developer of the product is unreachable:
JPCERT/CC had tried to reach the developer for a period of time (more than 6 months) however there were no responses from the developer. Therefore the committee reached the conclusion that it is reasonable and appropriate to judge the developer is unreachable.
- No response to 5 separate emails (sent from January 7, 2008 to June 22, 2021)
- No response to disclosure of the developer's name (listed on December 16, 2011) in "List of unreachable developers" and to the disclosure of the product name and its version (listed on March 16, 2012) in “Information Request” on JVN
- No response to the announcement of screening procedure for vulnerability disclosure (sent on December 7, 2023) - Existence of vulnerability has been verified:
It was verified by IPA that the product allows execution of an arbitrary script on the web browser displaying 'Search' page, which violates the "Confidentiality" and "Integrity" of the product. For verification details, refer to the "Verification" section. - Not disclosing this case may result in the risk that product users will have no means to know of the existence of the vulnerability in the product:
The developer either has not published an advisory for this vulnerability or it is not confirmed that the developer knows all the product users, therefore, it was judged there is a risk that the product users who do not know of the existence of the vulnerability exist. - There are no particular reasons that would make disclosure inappropriate:
After considering the developer’s stance and the risk to product users, the committee has judged that there are no particular reasons that would make disclosure inappropriate or that disclosure may cause any other issues.
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Verification
The vulnerability was reported to IPA and its existence was confirmed by IPA.
Date of validation
- August 25, 2023
- OS: Microsoft Windows 10 Pro (64-bit) 22H2/19045.3155
- Middleware:
- Apache 2.4.56
- Perl 5.32.1.1
- Software: Mini Thread 3.31β
- OS: Microsoft Windows 10 Pro (64-bit) 22H2/19045.3155
- Web browser: Microsoft Edge 90.0.818.56
- It was confirmed that an arbitrary script was executed on the web browser displaying 'Search' page of the product. Therefore, the reproduction of a cross-site scripting vulnerability was confirmed.
Credit
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2024-28034 |
| JVN iPedia |
JVNDB-2024-000905 |