Application Security This Week for December 8

My favorite thing this week: SwiftOnSecurity accidentally dropped a Confluence 0-day on Twitter.  Oopsie.

https://www.theregister.co.uk/2019/12/05/atlassian_zero_day_bug/

 

An Android spoofing vulnerability is already being exploited by bank thieves.  Hard to write secure apps when the platform doesn't help.

https://arstechnica.com/information-technology/2019/12/vulnerability-in-fully-patched-android-phones-under-active-attack-by-bank-thieves/

 

On that topic, here's a cool primer on Android reverse engineering.

https://maddiestone.github.io/AndroidAppRE/

 

TruffleHog is a new (and still a little rough) script to sniff out secrets from GitHub repos.

https://www.darknet.org.uk/2019/12/trufflehog-search-git-for-high-entropy-strings-with-commit-history/

 

AWS built a took to yell at you if you have open S3 buckets.

https://www.theregister.co.uk/2019/12/03/aws_s3_buckets/

 

That's the news, folks.  Stay safe out there.

Application Security This Week for December 1

Fortinet is communicating with static keys and a simple XOR.  Whoops.

https://sec-consult.com/en/blog/advisories/weak-encryption-cipher-and-hardcoded-cryptographic-keys-in-fortinet-products/

 

An Android gif library has an interesting vulnerability that will affect many application.

https://seclists.org/fulldisclosure/2019/Nov/27

 

An OWASP member made a neat ZAP plugin that helps to attack deployed Kubernetes applications.

https://github.com/omerlh/zap-operator

 

Hope everyone had a great thanksgiving.

S

Application Security This Week for November 24

Github is starting SecurityLab.  It's part knowledge sharing, part secure coding, part bounty hunting, and it is pretty neat.

https://securitylab.github.com/

 

Stacey on IoT has a good writeup on device and container security citing this Trend Micro report

https://www.trendmicro.com/vinfo/us/security/research-and-analysis/predictions/2020

Subscribe to her newsletter!

https://staceyoniot.com/

 

TrustedSec, an infosec firm in Cleveland run by my friend Dave Kennedy, has open sourced their legal documentation for physical pentesting in order to try and prevent another Iowa.

https://github.com/trustedsec/physical-docs

Read more about why here

https://www.trustedsec.com/blog/a-message-of-support-coalfire-consultants-charged/

 

Cool writeup of a DOM clobbering vulnerability.  I think DOM XSS will become more of a thing as browsers get more and more power.

https://research.securitum.com/xss-in-amp4email-dom-clobbering/

 

That's the news!

Application Security This Week for November 17

Great breakdown on finding bugs in an OAUTH flow

https://blog.teddykatz.com/2019/11/05/github-oauth-bypass.html

 

Only arguably appsec, but there is an artificial intelligence story writer that was determines to be too powerful to release into the wild, and it has been released into the wild

https://nakedsecurity.sophos.com/2019/11/11/ai-wordsmith-too-dangerous-to-be-released-has-been-released/

 

Remember when WordPress malware was all the rage?  Well, not it is Slack Themes

https://fletchto99.dev/2019/november/slack-vulnerability/

 

I am a web guy, not an OS guy, so I learned a ton from this rootkit primer

https://capsule8.com/blog/dont-get-kicked-out-a-tale-of-rootkits-and-other-backdoors/

 

That's the news, folks.

Application Security This Week for November 10

Microsoft has a really good article on using a semantic query language to find exploitable DOM XSS findings. Honestly the whole series is recommended, but the DOM XSS one here is particularly good.

https://msrc-blog.microsoft.com/2018/08/16/vulnerability-hunting-with-semmle-ql-part-1/

 

Google Project Zero revealed a UAF bug in Android a bit ago, and here is an awesome analysis of how it happened.  Good reading for mobile devs especially, but I certainly learned stuff too.

https://dayzerosec.com/posts/analyzing-androids-cve-2019-2215-dev-binder-uaf/

 

In continuing supply chain news, Armor has a good article on Managed Service Providers being a strong candidate for Malware Distributers of the Year.

https://www.armor.com/reports/new-msps-compromised-reports-armor/

 

That's the news!

Application Security This Week for November 3

Lawfare has a good article  by Jim Baker (former legal council for the FBI) on a new way to think about encryption.  You'll agree with some, disagree with some, but it will make you think.

https://www.lawfareblog.com/rethinking-encryption

 

From the Standard Vulnerability List: "When a session ends, first select the session ID from the client, then delete the session information from the server, then finally return the user to the login page." Session management matters, people.

https://arstechnica.com/information-technology/2019/10/five-months-after-returning-rental-car-man-still-has-remote-control/

 

Google is doing its "we are the Web so we will decide how it works" thing again, and threatening to enable samesite by default in Chrome. Here's some analysis of that.

https://www.jardinesoftware.net/2019/10/28/samesite-by-default-in-2020/

 

Speaking of Chrome nad running the web, here's El Reg's take on DNS over HTTPS:

https://www.theregister.co.uk/2019/10/29/chrome_dns_https/

 

Oh, and still speaking of Google and glass houses and stone throwing, there's an 0-day in Chrome.

https://www.bleepingcomputer.com/news/security/chrome-zero-day-bug-with-exploit-in-the-wild-gets-a-patch/

 

You know that stupid goose game your kid is playing? There is an insecure deserialization flaw in it.

https://pulsesecurity.co.nz/advisories/untitled-goose-game-deserialization

 

And finally, a good talk out of BSides Belfast about supply-chain attacks.  Code review your open source libraries, folks!

https://www.infosecurity-magazine.com/news/bsidesbelfast-supply-chain/

 

Busy week! But that's the news.

 

Application Security This Week for October 27

Here's an interesting article on some non-JavaScript Cross-Site Scripting vectors.

https://x-c3ll.github.io/posts/CSS-Injection-Primitives/

 

Timely history lesson about the gradual movement of web application from primarily server-side to primarily client-side:

https://medium.com/young-coder/an-illustrated-beginners-guide-to-server-side-and-client-side-code-723cbb1db9ea

 

This isn't as new of an idea as the authors would like us to believe, but it is a good PoC of the CDN-related cache poisoning attack:

https://thehackernews.com/2019/10/cdn-cache-poisoning-dos-attack.html?m=1

 

Public disclosure of some bugs in AutoDesk discovered by binary fuzzing. Good way to get a look into this kind of testing - look breakdowns of CVEs.

https://fuzzit.dev/2019/10/25/discovery-and-analysis-of-2-dos-vulnerabilities-in-autodesk-fbx-1-unpatched/

 

PHP has a vector for remote code execution (combined with other known flaws) to patch if you can! Worth a read for the process, as well.

https://thehackernews.com/2019/10/nginx-php-fpm-hacking.html

 

That's the news, folks.

Application Security This Week for October 20

Here is a good writeup on the overflow error found in libssh2

https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/

 

Speaking of bugs in old software, here's one in sudo.

https://www.openwall.com/lists/oss-security/2019/10/14/1

 

Using data analysis to further research into malware sources, with PDB paths. Pretty neat!

https://www.fireeye.com/blog/threat-research/2019/10/definitive-dossier-of-devilish-debug-details-part-deux.html

 

And in IoT security news, the Catholic church's eRosery (no I'm not kidding) has a number of significant flaws.

https://www.msn.com/en-us/news/technology/vatican-s-wearable-rosary-gets-fix-for-app-flaw-allowing-easy-hacks/ar-AAIZICz?ocid=ARWLCHR

https://www.theregister.co.uk/2019/10/18/vatican_erosary_insecure/

 

That's the news, folks!

Application Security This Week for October 13

Portswigger has some good research on a new angle for cross-site leak attacks:

https://portswigger.net/research/xs-leak-leaking-ids-using-focus

 

Serverless inftastructures are slipping through the cracks as far as security testing goes.  Here's a new tool for Amazon Lambda - hopefully it leads to more.

https://www.darknet.org.uk/2019/10/lambdaguard-aws-lambda-serverless-security-scanner/

 

Mozilla isolated an interesting RCE bug in iTerm2:

https://blog.mozilla.org/security/2019/10/09/iterm2-critical-issue-moss-audit/

 

Eric Lawrence (of Fiddler fame) has a good writeup on Chrome's new direction for cookies:

https://textslashplain.com/2019/09/30/same-site-cookies-by-default/

 

And that's the news.

Application Security This Week for October 6

This is a blog entirely dedicated to security analysis of mobine apps.  No idea who writes it but it is good.

https://theappanalyst.com/

 

Neat writeup on going from SQL Injection to Remote Code Execution.

https://medium.com/bugbountywriteup/sql-injection-to-lfi-to-rce-536bed29a862

 

I've been on a PHP project recently, and I learned about this cool tool to bypass disable_functions.

https://github.com/mm0r1/exploits/tree/master/php7-gc-bypass

 

Speaking of PHP, the statis code analysis tool I learned to use was Exakat.  Steep learning curve but unbelievable reports.  And open source!

https://github.com/exakat/exakat

 

That's the news, folks.

 

Bill Sempf

Husband. Father. Pentester. Secure software composer. Brewer. Lockpicker. Ninja. Insurrectionist. Lumberjack. All words that have been used to describe me recently. I help people write more secure software.

 

 

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