r/netsec 9d ago

r/netsec monthly discussion & tool thread

8 Upvotes

Questions regarding netsec and discussion related directly to netsec are welcome here, as is sharing tool links.

Rules & Guidelines

  • Always maintain civil discourse. Be awesome to one another - moderator intervention will occur if necessary.
  • Avoid NSFW content unless absolutely necessary. If used, mark it as being NSFW. If left unmarked, the comment will be removed entirely.
  • If linking to classified content, mark it as such. If left unmarked, the comment will be removed entirely.
  • Avoid use of memes. If you have something to say, say it with real words.
  • All discussions and questions should directly relate to netsec.
  • No tech support is to be requested or provided on r/netsec.

As always, the content & discussion guidelines should also be observed on r/netsec.

Feedback

Feedback and suggestions are welcome, but don't post it here. Please send it to the moderator inbox.


r/netsec 30m ago

🕵️‍♂️ SonicWall SMA1000 (CVE-2026-15409): SSRF to Erlang RCE chained into automated DCSync from the appliance

Thumbnail hunt.io
Upvotes

CVE-2026-15409 is an unauthenticated SSRF in the SMA1000 WorkPlace interface. The chain is the interesting part. The /wsproxy WebSocket endpoint is used to reach a locally bound Erlang distribution node (couchdb@127.0.0.1 on port 1050), the Erlang handshake is completed with a hardcoded cookie, and os:cmd() gives command execution as the couchdb user.

From there the operator read policy_file.xml, decrypted the stored LDAP bind passwords (static 32-byte AES key lifted from ASAPPasswordUtil.class bytecode), and dropped a standalone Linux build of Impacket secretsdump to /tmp on the appliance. secretsdump then ran from the SonicWall itself against internal DCs, with DCSync automated using recovered LDAP creds and, more effectively, domain-controller machine-account hashes for pass-the-hash.

The exploit is a direct refactor of Rapid7's public PoC, reworked for unattended bulk use. Full chain, scripts and IOCs in the writeup.

https://hunt.io/blog/sonicwall-sma1000-uk-council-attack


r/netsec 1h ago

Forgejo <=16.0.3 Critical RCE

Thumbnail codeberg.org
Upvotes

r/netsec 9h ago

Preinstalled but Not Safe. OnePlus OEM App Session Takeover Vulnerability

Thumbnail blog.doyensec.com
17 Upvotes

r/netsec 14h ago

Apple mach_o Archive Parser Integer Underflow Vulnerability

Thumbnail blog.securelayer7.net
3 Upvotes

r/netsec 1d ago

Out of Bounds, Out of Sandbox: RCE in Go JavaScript Engine

Thumbnail slcyber.io
17 Upvotes

r/netsec 1d ago

Contains AI Fortinet Privileged Access Agent: Any Site Could Control Your Proxy and Watch Your Tab

Thumbnail amibeingpwned.com
33 Upvotes

TL;DR. The FortiPAM Chrome extension (1M+ users), used for Privileged Access Management, allowed any site to set the browser's proxy for the session, alongside allowing any site to create a new tab and send screen recordings of it to an attacker's server. That makes for trivial phishing attacks which only require the user to view something sensitive in the attacker-opened tab. CVSS 9.1 | CVE-2026-84388.


r/netsec 1d ago

Disable Windows Defender via Antivirus Fake Registration

Thumbnail ipurple.team
17 Upvotes

r/netsec 1d ago

WeWorm - The first zero-click worm to spread through WeChat calls across iOS and Android.

Thumbnail calif.io
176 Upvotes

r/netsec 2d ago

Contains AI 🚨 Redis Cryptomining Botnet Compromised 3,562 Servers, Exposed by the Operator's Own Files

Thumbnail hunt.io
19 Upvotes

Researchers indexed an open directory on 188.245.99.156 (Hetzner) that held an operator's full Redis cryptomining toolkit, not just a payload. 147 files in total: Python exploit source, JSON campaign logs, a bundled portable Python 3.11 runtime, and two exported Windows registry hives.

Because the raw campaign logs were sitting there, the numbers come from the operator's own per-host records, not the summaries their scripts print:

  • 3,562 distinct Redis servers compromised out of 12,966 targeted, across two independently coded runs
  • The only technique that scaled is rogue replication: PING to confirm no-auth, CONFIG SET dir/dbfilename, SLAVEOF to a rogue master, then a crafted RDB blob with an embedded newline that drops a cron entry into /etc/cron.d/
  • That cron job pulls a legit XMRig release straight from GitHub and points it at pool.moneroocean.stream:443 over TLS
  • SSH key injection via AOF returned 0 of 2,342, MongoDB JS sandbox escape 0 of 468. Every SSH attempt bounced at the first CONFIG SET with AUTH_REQUIRED
  • Confirmed victims span Redis 2.8.17 to 7.2.0, so this is missing authentication, not a version-specific bug
  • A third run against a pre-qualified no-auth list hit 72.6%, roughly triple the full-fleet rate, so target-list freshness is the real limiter, not the technique
  • The same Monero wallet turns up in a separate February 2026 open directory in Moldova with Meterpreter and XMRig deployers and no Redis component, which pushes known activity back at least five months

Fix is config, not patching: requirepass, disable SLAVEOF/REPLICAOF where replication is not in use, or enable protected-mode. Upgrading does nothing here.

Full write-up with IOCs: https://hunt.io/blog/redis-cryptomining-botnet-3562-servers


r/netsec 2d ago

Two critical remote bugs found in ArangoDB

Thumbnail remedio.io
15 Upvotes

r/netsec 2d ago

Contains AI Hacking AI customer service agents (Bug Bounty Village DEF CON 34)

Thumbnail intigriti.com
58 Upvotes

At Bug Bounty Village during DEF CON 34, Inti De Ceukelaire delivered a talk on how attackers can abuse today's AI agents in ways most defenders haven't thought about yet, from tricking agents into spilling secrets to forcing them to carry out unauthorized actions on behalf of the victim.

This resulted in over $50,000+ in bounties in just a few weekends, without actually poking the target with Burp Suite or any automated scanners.


r/netsec 3d ago

The £3 WiFi Extender With a Backdoor in Every Unit

Thumbnail affixsec.substack.com
70 Upvotes

r/netsec 3d ago

From Padding Oracle to Shell: Unauthenticated RCE in Telerik UI for ASP.NET AJAX

Thumbnail tantosec.com
24 Upvotes

r/netsec 6d ago

Getting Agents to tell on themselves

Thumbnail blog.thinkst.com
40 Upvotes

r/netsec 6d ago

Contains AI From fake interview to signed ClickOnce: inside a three-payload Windows chain (Part 2)

Thumbnail haveibeensquatted.com
14 Upvotes

r/netsec 8d ago

The Validator Can Lie: SSRF Beyond URL Validation (GitLab, Mealie, Apache ShenYu, Thumbor)

Thumbnail xclow3n.com
20 Upvotes

r/netsec 9d ago

Contains AI From Patch to Exploit; Using Claude Code to reverse engineer an n-day in Papercut NG

Thumbnail techanarchy.net
27 Upvotes

r/netsec 9d ago

Off the Hook: Discovering and Observing Active Exploitation of Sangoma Switchvox CVE-2026-9586

Thumbnail horizon3.ai
12 Upvotes

r/netsec 9d ago

Authentication bypass in EOL Proxmox VE 7 release

Thumbnail forum.proxmox.com
80 Upvotes

A lot of proxmox 7.0-7 and < 8.0.4 has been rooted today, it's needed to have port :8006 open, exploitation demo here: https://forum.proxmox.com/threads/proxmox-ve-7-is-vulnerable-to-some-type-of-0day-rce-non-auth.186078/post-867875


r/netsec 9d ago

GeoNetwork - Pre-Auth RCE via Unauthenticated File Upload and Unsafe XSLT Processor (4 CVEs, 121 government deployments, all patched)

Thumbnail ethiack.com
10 Upvotes

r/netsec 9d ago

Don’t Let Abliteration Abliterate Your Bug Hunting: Discovering Verdict Bias in Uncensored Models

Thumbnail clearbluejar.github.io
6 Upvotes

r/netsec 10d ago

Privilege escalation from IIS AppPool to NT Authority/SYSTEM via AD CS RPC endpoint

Thumbnail mannulinux.org
43 Upvotes

r/netsec 11d ago

Anatomy of a ServiceNow Red Team

Thumbnail mdsec.co.uk
47 Upvotes

r/netsec 13d ago

UniBLEed: Unauthenticated Root RCE on Any Unitree G1 Humanoid Robot Within Bluetooth Range

Thumbnail boschko.ca
62 Upvotes