#web

# Microsoft Security Advisory CVE-2024-21319: .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in the ASP.NET Core project templates. This advisory also provides guidance on what developers can do to update their applications to address this vulnerability. A Denial of Service vulnerability exists in ASP.NET Core project templates which utilize JWT-based authentication tokens. This vulnerability allows an unauthenticated client to consume arbitrarily large amounts of server memory, potentially triggering an out-of-memory condition on the server and making the server no longer able to respond to legitimate requests. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/290 ### <a name="mitigation-factors"></a>Mitigation factors This impacts only .NET Core-based projects that were created using any...

### Impact _What kind of vulnerability is it? Who is impacted?_ An attacker could exploit this vulnerability by crafting a malicious JSON Web Encryption (JWE) token with a high compression ratio. This token, when processed by a server, leads to excessive memory allocation and processing time during decompression, causing a denial-of-service (DoS) condition. It's important to note that the attacker must have access to the public encrypt key registered with the IDP(Entra ID) for successful exploitation. _According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?_ A scope change (S:C) in the CVSS metric indicates that successful exploitation of this vulnerability could extend beyond the immediate processing of malicious tokens, affecting the overall availability of the system by causing a denial-of-service (DoS) condition. ### Patches _Has the problem been patched? What versions should users upgrade to?_ The v...

OX App Suite version 7.10.6-rev51 suffers from an access control vulnerability. Version 7.10.6-rev34 suffers from multiple cross site scripting vulnerabilities.

OX App Suite version 7.10.6-rev50 suffers from remote code execution and LDAP injection vulnerabilities. Version 7.10.6-rev33 suffers from a cross site scripting vulnerability.

liveSite version 2019.1 suffers from a remote code execution vulnerability.

Intrasrv Simple Web Server version 1.0 suffers from a denial of service vulnerability.

AdvantechWeb/SCADA version 9.1.5U suffers from a post authentication remote SQL injection vulnerability.

### Summary As of `fonttools>=4.28.2` the subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. ### PoC The vulnerability can be reproduced following the bellow steps on a unix based system. 1. Build a OT-SVG font which includes a external entity in the SVG table which resolves a local file. In our testing we utilised `/etc/passwd` for our POC file to include and modified an existing subset integration test to build the POC font - see bellow. ```python from string import ascii_letters from fontTools.fontBuilder import FontBuilder from fontTools.pens.ttGlyphPen import TTGlyphPen from fontTools.ttLib import newTable XXE_SVG = """\ <?xml version="1.0"?> <!DOCTYPE svg [<!ENTITY test SYSTEM 'file...

By Owais Sultan AI data marketplace Ta-da has announced the completion of a $3.5M funding round. A number of leading blockchain… This is a post from HackRead.com Read the original post: Ta-da Raises $3.5M to Build Out Its AI Data Marketplace

Collaboration is a powerful selling point for SaaS applications. Microsoft, Github, Miro, and others promote the collaborative nature of their software applications that allows users to do more. Links to files, repositories, and boards can be shared with anyone, anywhere. This encourages teamwork that helps create stronger campaigns and projects by encouraging collaboration among employees