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Notices tagged with security

LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Wednesday, 18-Aug-2021 15:39:54 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
- Rysiekúr Memesson
#T-mobile #security

From 2018: https://nu.federati.net/url/282487

/via @rysiek @rysiek@mastodon.technology
In conversation about a month ago from web permalink
Attachments
1. T-Mobile Austria on Twitter
  
  “@Korni22 @c_pellegrino @PWTooStrong @Telekom_hilft @Korni22 What if this doesn't happen because our security is amazingly good? ^Käthe”
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Sunday, 25-Apr-2021 06:48:04 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

University of #Minnesota researchers apologize to the #Linux kernel community, ask to restore trust.

https://nu.federati.net/url/280818 [lore kernel org]

#MN #UMN #security
In conversation about 5 months ago from Shoyu permalink
Attachments
1. An open letter to the Linux community
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Sunday, 18-Apr-2021 15:41:27 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
in reply to
- LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
Further info: https://news-web.php.net/php.internals/113838

And with the presumed compromise of git.php.net, all future development activities will take place on #GitHub.

#code-hosting #vcs #scm #security #git #php
In conversation about 5 months ago from mustard permalink
Attachments
1. php.internals: Changes to Git commit workflow
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Thursday, 25-Mar-2021 00:10:19 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

Detecting #curl-pipe-bash from the server-side: https://www.idontplaydarts.com/2016/04/detecting-curl-pipe-bash-server-side/ [www idontplaydarts com]

#security #curl #wget #pipe #bash
In conversation about 6 months ago from web permalink
Attachments
1. Detecting the use of "curl | bash" server side | Application Security
  
  Another reason not to pipe from curl to bash. Detecting curl | bash serverside.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Thursday, 17-Dec-2020 03:32:37 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

https://nu.federati.net/url/278948 [thejournal com]

Schools are now the most targeted segment for ransomware ... make up the majority of all ransomware attacks.

#security #ransomware #k-12 #schools
In conversation about 10 months ago from web permalink
Attachments
1. K–12 Has Become the Most Targeted Segment for Ransomware -- THE Journal
  
  Malicious actors have disrupted remote learning by targeting school systems in their ransomware, malware and DDoS attacks.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Monday, 14-Dec-2020 22:42:47 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

#Mattermost devs discover unfixable (?) flaws in #Go-Lang library https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ #security
In conversation about 10 months ago from mustard permalink
Attachments
1. Coordinated disclosure of XML round-trip vulnerabilities in Go XML
  
  from Juho Nurminen
  
  If you maintain a Go-based project that relies on XML integrity, we urge you to read this post carefully.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Sunday, 13-Dec-2020 23:54:44 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
in reply to
- GeniusMusing
The Guardian's text is pretty similar to the Jerusalem Post's: https://nu.federati.net/url/278891

#US_Treasury #security #breach
In conversation about 10 months ago from web permalink
Attachments
1. Suspected Russian hackers spied on US Treasury emails - sources
  
  The hack is so serious it led to a National Security Council meeting at the White House on Saturday.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Wednesday, 09-Dec-2020 02:15:44 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

US #cybersecurity firm #FireEye discloses breach, theft of tools https://finance.yahoo.com/news/u-cybersecurity-firm-fireeye-discloses-210424354.html [finance yahoo com]

#SEC #security #breach #filing
In conversation about 10 months ago from web permalink
Attachments
1. U.S. cybersecurity firm FireEye discloses breach, theft of hacking tools
  
  (Reuters) -FireEye, one of the largest cybersecurity companies in the United States, said on Tuesday that it had been hacked, likely by a government, and that an arsenal of hacking tools used to test the defenses of its clients had been stolen. The hack of FireEye, a company with an array of contracts across the national security space both in the United States and its allies, is among the most significant breaches in recent memory. The FireEye breach was disclosed in a public filing with the Securities and Exchange Commission citing CEO Kevin Mandia.
GeniusMusing (geniusmusing@nu.federati.net)'s status on Wednesday, 09-Dec-2020 01:06:10 UTC GeniusMusing

OpenSSL Releases Security Update CISA
https://us-cert.cisa.gov/ncas/current-activity/2020/12/08/openssl-releases-security-update

>OpenSSL has released a security update to address a vulnerability affecting all versions of 1.0.2 and 1.1.1 released before version 1.1.1i. An attacker could exploit this vulnerability to cause a denial-of-service condition.

openssl.org/news/secadv/20201208.txt
https://www.openssl.org/news/secadv/20201208.txt

>EDIPARTYNAME NULL pointer de-reference (CVE-2020-1971)
>======================================================
>
>Severity: High
>
>The X.509 GeneralName type is a generic type for representing different types
>of names. One of those name types is known as EDIPartyName. OpenSSL provides a
>function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME
>to see if they are equal or not. This function behaves incorrectly when both
>GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash
>may occur leading to a possible denial of service attack.
>
>OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes:
>1) Comparing CRL distribution point names between an available CRL and a CRL
> distribution point embedded in an X509 certificate
>2) When verifying that a timestamp response token signer matches the timestamp
> authority name (exposed via the API functions TS_RESP_verify_response and
> TS_RESP_verify_token)
>
>If an attacker can control both items being compared then that attacker could
>trigger a crash.
>...

#OpenSSL #Security #Update
In conversation about 10 months ago from web permalink
Attachments
1. OpenSSL Releases Security Update | CISA
  
  OpenSSL has released a security update to address a vulnerability affecting all versions of 1.0.2 and 1.1.1 released before version 1.1.1i. An attacker could exploit this vulnerability to cause a denial-of-service condition. The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the OpenSSL Security Advisory and apply the necessary update.
GeniusMusing (geniusmusing@nu.federati.net)'s status on Tuesday, 08-Dec-2020 17:32:50 UTC GeniusMusing

Multiple Embedded TCP/IP Stacks CISA
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

>1. EXECUTIVE SUMMARY
>
> CVSS v3 9.8
> ATTENTION: Exploitable remotely/low skill level to exploit
> Vendor: Multiple (open source)
> Equipment: uIP-Contiki-OS, uIP-Contiki-NG, uIP, open-iscsi, picoTCP-NG, picoTCP, FNET, Nut/Net
> Vulnerabilities: Infinite Loop, Integer Wraparound, Out-of-bounds Read, Integer Overflow, Out-of-bounds Write, Improper Input Validation, Improper Null Termination
>
>CISA is aware of a public report, known as “AMNESIA:33” that details vulnerabilities found in multiple open-source TCP/IP stacks. CISA is issuing this advisory to provide early notice of the reported vulnerabilities and identify baseline mitigations for reducing risks to these and other cybersecurity attacks.
>
>The various open-source stacks may be implemented in forked repositories.
>2. RISK EVALUATION
>
>Successful exploitation of these vulnerabilities could allow attackers to corrupt memory, put devices into infinite loops, access unauthorized data, and/or poison DNS cache.
>3. TECHNICAL DETAILS
>3.1 AFFECTED PRODUCTS
>
>The following are affected:
>
> uIP-Contiki-OS (end-of-life [EOL]), Version 3.0 and prior
> uIP-Contiki-NG, Version 4.5 and prior
> uIP (EOL), Version 1.0 and prior
> open-iscsi, Version 2.1.12 and prior
> picoTCP-NG, Version 1.7.0 and prior
> picoTCP (EOL), Version 1.7.0 and prior
> FNET, Version 4.6.3
> Nut/Net, Version 5.1 and prior
>...
#Security
In conversation about 10 months ago from web permalink
Attachments
1. Multiple Embedded TCP/IP Stacks | CISA
  
  1.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Saturday, 05-Dec-2020 19:42:34 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
https://pluralistic.net/2020/12/05/trusting-trust/

> WARNING WARNING WARNING WARNING

> Security researchers are alarmed: the already-notorious Trickbot malware has been spottied probing infected computers to find out which version of UEFI they're running. This is read as evidence that Trickbot has figured out how to pull off a really scary feat.

Source: https://mamot.fr/@pluralistic/105329139472008620

#Security #UEFI #BIOS #TPM #Trusted-Computing

CC: @mangeurdenuage @geniusmusing @musicman

It's a long article, but well worth your time.
In conversation about 10 months ago from web permalink
Attachments
1. Pluralistic: 05 Dec 2020
  
  from Cory Doctorow
2. Cory Doctorow's linkblog (@pluralistic@mamot.fr)
  
  from Cory Doctorow's linkblog
  
  Attached: 1 image WARNING WARNING WARNING WARNING This is a long-ass thread, even by my long-ass standards. If you'd prefer to read it on the web, here you go: https://pluralistic.net/2020/12/05/trusting-trust/ WARNING WARNING WARNING WARNING Security researchers are alarmed: the already-notorious Trickbot malware has been spottied probing infected computers to find out which version of UEFI they're running. This is read as evidence that Trickbot has figured out how to pull off a really scary feat. 1/
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Friday, 20-Nov-2020 23:49:34 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

"So you want to get into Infosec?"

https://hackers.town/@thegibson/105243991039588873 Some links to discounted or free training in that thread.

#infosec #security #training #education
In conversation about 10 months ago from web permalink
Attachments
1. The_Gibson: APT 3319 (@thegibson@hackers.town)
  
  from The_Gibson: APT 3319
  
  Content warning: So you want to get into infosec?
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Thursday, 05-Nov-2020 17:03:48 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
- aab
@aab has found something to block some traffic from unwanted portscans: https://dodweil.us/security/ufw-fail2ban-portscan.html

#security #NoteToSelf

In conversation about 11 months ago from web permalink
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Sunday, 01-Nov-2020 17:06:34 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
- GeniusMusing
@geniusmusing See https://hackers.town/@devrandom/105136083240782878

#security
In conversation about a year ago from mustard permalink
Attachments
1. /DΞV/ЯДИDФM (@devrandom@hackers.town)
  
  from /DΞV/ЯДИDФM
  
  Attached: 1 image Oh. This could be “fun”.
Sami Lehtinen (sl@loadaverage.org)'s status on Sunday, 01-Nov-2020 12:20:39 UTC Sami Lehtinen
Remote profile options...

#NAT #slipstreaming https://samy.pl/slipstream/
#Internet #security #MSS #MTU #ALG #WebRTC #TURN #TCP #UDP #SIP #FTP #DCC #pptp #h323 #attack #exploit
In conversation about a year ago from loadaverage.org permalink
Attachments
1. Samy Kamkar - NAT Slipstreaming
  
  exploit NAT/firewalls to access TCP/UDP services bound on a victim machine
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Saturday, 31-Oct-2020 16:32:38 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

#Google discloses #Microsoft #Windows 10 #zero-day vulnerability that is currently being exploited in the wild. Also patched a #Chrome zero-day. https://www.zdnet.com/article/google-discloses-windows-zero-day-exploited-in-the-wild/ [www zdnet com]

#Win10 #security

Patch incoming 2020-11-10, #Patch_Tuesday.
In conversation about a year ago from web permalink
Attachments
1. Google discloses Windows zero-day exploited in the wild | ZDNet
  
  from https://twitter.com/campuscodi
  
  Windows zero-day (not yet patched) is used as part of an exploit chain that also includes a Chrome zero-day (already patched).
Sami Lehtinen (sl@loadaverage.org)'s status on Monday, 12-Oct-2020 14:52:59 UTC Sami Lehtinen
Remote profile options...

Quite interesting #documentary, just watched it:
Kill Chain: The #Cyber #War on #America's #Elections
https://imdb.com/title/tt12041084/
#hackers #hacking #security #politics
In conversation about a year ago from loadaverage.org permalink
Attachments
1. Kill Chain: The Cyber War on America's Elections (2020) - IMDb
  
  Directed by Simon Ardizzone, Russell Michaels, Sarah Teale. With J. Alex Halderman, Sue Halpern, Nathaniel Herz, Harri Hursti. Finnish hacker and election expert Harri Hursti investigates election-related hacks, uncovering just how unprotected voting systems really are.
Ubuntu (ubuntu@ubuntu.social)'s status on Monday, 28-Sep-2020 19:19:32 UTC Ubuntu
Remote profile options...

Organisations are increasingly adopting #opensource but that can lead to a more fragmented landscape for security teams. In this @DarkReading@twitter.com article, we outline 3 essential steps for every enterprise to enhance their #security practices. https://bit.ly/344pG5z
In conversation about a year ago from ubuntu.social permalink
Attachments
1. Open Source Security's Top Threat and What To Do About It
  
  With open source developers regularly churning out new tools, the risk landscape has become too fragmented to properly monitor.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Monday, 28-Sep-2020 02:43:43 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

FastCompany: Don't share #passwords with your GF or BF until you read this https://www.fastcompany.com/90556503/dont-share-passwords-with-your-gf-or-bf-until-you-read-this [www fastcompany com]

I didn't know people still did this.

#security #relationships
In conversation about a year ago from web permalink
Attachments
1. Don’t share passwords with your GF or BF until you read this
  
  from Zlati Meyer
  
  Sharing doesn’t end after a breakup: A quarter of respondents in a new survey admitted to using location-sharing apps to check the whereabouts of an ex.
LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1@nu.federati.net)'s status on Wednesday, 23-Sep-2020 01:57:14 UTC LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}

Chinese antivirus firm part of malware / ransomware group https://krebsonsecurity.com/2020/09/chinese-antivirus-firm-was-part-of-apt41-supply-chain-attack/ #security
In conversation about a year ago from mustard permalink
Attachments
1. Chinese Antivirus Firm Was Part of APT41 ‘Supply Chain’ Attack
  
  The U.S. Justice Department this week indicted seven Chinese nationals for a decade-long hacking spree that targeted more than 100 high-tech and online gaming companies. The government alleges the men used malware-laced phishing emails and "supply chain" attacks to steal data from companies and their customers. One of the alleged hackers was first profiled here…

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