Posts by Tag

• ctf 20
• write-up 20
• linux 11
• networking 5
• network 5
• covert-channel 5
• hacking 4
• forensics 4
• ipv6 2
• miscellaneous 2
• secure-coding 2
• steganography 2
• cracking 2
• reverse-engineering 2
• vmware 2
• vlans 2
• virtualization 2
• pivoting 1
• volatility 1
• windows 1
• elastic 1
• devops 1
• docker 1
• troubleshooting 1
• dhcpv6 1
• vlan 1
• unifi 1
• ubiquiti 1
• database 1
• sqli 1
• arm 1
• angr 1
• privesc 1
• systemd 1
• encoding 1
• encryption 1

ctf

5Charlie CTF - Disorderly2

8 minute read

A write-up of the Disorderly2 crypto challenge from 5Charlie CTF.

5Charlie CTF - Escalator

6 minute read

A write-up of the “Escalator” privelege escalation challenge set from 5Charlie CTF.

5Charlie CTF - Easy Too

2 minute read

A write-up of the “Easy Too” reverse engineering challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Easy Channel

1 minute read

A write-up of the “Easy Channel” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Busy Day

1 minute read

A write-up of the “Busy Day” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

5Charlie CTF - Myste-RE

less than 1 minute read

A write-up of the “Myste-RE” reverse-engineering challenge from 5Charlie CTF.

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

5Charlie CTF - MP3 - Pop

less than 1 minute read

A write-up of the “Pop” audio steganography challenge from 5Charlie CTF.

5Charlie CTF - Korobochka

2 minute read

A write-up of the “Korobochka” Elastic hacking challenge from 5Charlie CTF.

5Charlie CTF - Exfil - MD5

less than 1 minute read

A write-up of the “MD5” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - Wisdom

1 minute read

A write-up of the “Wisdom” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Evasion

3 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - Cracking

1 minute read

A write-up of the “Cracking” password cracking challenge from 5Charlie CTF.

5Charlie CTF - Covert Channel - Normal

1 minute read

A write-up of the “Normal” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - BMP

1 minute read

A write-up of the BMP image steganography challenge from 5Charlie CTF.

5Charlie CTF - Blackjack 2.0

3 minute read

A write-up of the Blackjack 2.0 Python application security challenge from 5Charlie CTF.

5Charlie CTF - Blackjack

3 minute read

A write-up of the Blackjack Python application security challenge from 5Charlie CTF.

5Charlie CTF - Aperture

4 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - 0day

7 minute read

A write-up of the 0day Windows memory forensics challenge from 5Charlie CTF.

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write-up

5Charlie CTF - Disorderly2

8 minute read

A write-up of the Disorderly2 crypto challenge from 5Charlie CTF.

5Charlie CTF - Escalator

6 minute read

A write-up of the “Escalator” privelege escalation challenge set from 5Charlie CTF.

5Charlie CTF - Easy Too

2 minute read

A write-up of the “Easy Too” reverse engineering challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Easy Channel

1 minute read

A write-up of the “Easy Channel” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Busy Day

1 minute read

A write-up of the “Busy Day” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

5Charlie CTF - Myste-RE

less than 1 minute read

A write-up of the “Myste-RE” reverse-engineering challenge from 5Charlie CTF.

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

5Charlie CTF - MP3 - Pop

less than 1 minute read

A write-up of the “Pop” audio steganography challenge from 5Charlie CTF.

5Charlie CTF - Korobochka

2 minute read

A write-up of the “Korobochka” Elastic hacking challenge from 5Charlie CTF.

5Charlie CTF - Exfil - MD5

less than 1 minute read

A write-up of the “MD5” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - Wisdom

1 minute read

A write-up of the “Wisdom” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Evasion

3 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - Cracking

1 minute read

A write-up of the “Cracking” password cracking challenge from 5Charlie CTF.

5Charlie CTF - Covert Channel - Normal

1 minute read

A write-up of the “Normal” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - BMP

1 minute read

A write-up of the BMP image steganography challenge from 5Charlie CTF.

5Charlie CTF - Blackjack 2.0

3 minute read

A write-up of the Blackjack 2.0 Python application security challenge from 5Charlie CTF.

5Charlie CTF - Blackjack

3 minute read

A write-up of the Blackjack Python application security challenge from 5Charlie CTF.

5Charlie CTF - Aperture

4 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - 0day

7 minute read

A write-up of the 0day Windows memory forensics challenge from 5Charlie CTF.

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linux

RE: VMWare Workstation VLANs

3 minute read

Last year I wrote about using VLANs with VMWare Workstation with systemd-networkd. A year later, I’m still actively using this process in my day to day workf...

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

5Charlie CTF - Escalator

6 minute read

A write-up of the “Escalator” privelege escalation challenge set from 5Charlie CTF.

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

Unifi CloudKey Gen2 Plus Dual Homing

4 minute read

UPDATE: Updates to the Unifi software now conflict with this configuration. I highly recommend finding an alternative solution as this will cause the Unifi P...

Linux Desktop Not Pulling An IPv6 Address

1 minute read

Configure your host firewall to allow DHCPv6 inbound.

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

5Charlie CTF - Korobochka

2 minute read

A write-up of the “Korobochka” Elastic hacking challenge from 5Charlie CTF.

5Charlie CTF - Evasion

3 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - Aperture

4 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

Bypassing Linux Firewalls with Link-Local IPv6

6 minute read

During a King-of-the-Hill or Attack/Defend-style Capture the Flag exercise, defenders are under pressure to defend many hosts at once, to the best of their a...

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networking

RE: VMWare Workstation VLANs

3 minute read

Last year I wrote about using VLANs with VMWare Workstation with systemd-networkd. A year later, I’m still actively using this process in my day to day workf...

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

Unifi CloudKey Gen2 Plus Dual Homing

4 minute read

UPDATE: Updates to the Unifi software now conflict with this configuration. I highly recommend finding an alternative solution as this will cause the Unifi P...

Linux Desktop Not Pulling An IPv6 Address

1 minute read

Configure your host firewall to allow DHCPv6 inbound.

Bypassing Linux Firewalls with Link-Local IPv6

6 minute read

During a King-of-the-Hill or Attack/Defend-style Capture the Flag exercise, defenders are under pressure to defend many hosts at once, to the best of their a...

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network

5Charlie CTF - Covert-Channel - Easy Channel

1 minute read

A write-up of the “Easy Channel” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Busy Day

1 minute read

A write-up of the “Busy Day” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - MD5

less than 1 minute read

A write-up of the “MD5” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - Wisdom

1 minute read

A write-up of the “Wisdom” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert Channel - Normal

1 minute read

A write-up of the “Normal” network covert-channel pcap analysis challenge from 5Charlie CTF.

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covert-channel

5Charlie CTF - Covert-Channel - Easy Channel

1 minute read

A write-up of the “Easy Channel” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert-Channel - Busy Day

1 minute read

A write-up of the “Busy Day” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - MD5

less than 1 minute read

A write-up of the “MD5” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Exfil - Wisdom

1 minute read

A write-up of the “Wisdom” network covert-channel pcap analysis challenge from 5Charlie CTF.

5Charlie CTF - Covert Channel - Normal

1 minute read

A write-up of the “Normal” network covert-channel pcap analysis challenge from 5Charlie CTF.

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hacking

5Charlie CTF - Escalator

6 minute read

A write-up of the “Escalator” privelege escalation challenge set from 5Charlie CTF.

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

5Charlie CTF - Korobochka

2 minute read

A write-up of the “Korobochka” Elastic hacking challenge from 5Charlie CTF.

Bypassing Linux Firewalls with Link-Local IPv6

6 minute read

During a King-of-the-Hill or Attack/Defend-style Capture the Flag exercise, defenders are under pressure to defend many hosts at once, to the best of their a...

Back to Top ↑

forensics

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

5Charlie CTF - Evasion

3 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - Aperture

4 minute read

A write-up of the Aperture Linux live system forensics challenge from 5Charlie CTF.

5Charlie CTF - 0day

7 minute read

A write-up of the 0day Windows memory forensics challenge from 5Charlie CTF.

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ipv6

Linux Desktop Not Pulling An IPv6 Address

1 minute read

Configure your host firewall to allow DHCPv6 inbound.

Bypassing Linux Firewalls with Link-Local IPv6

6 minute read

During a King-of-the-Hill or Attack/Defend-style Capture the Flag exercise, defenders are under pressure to defend many hosts at once, to the best of their a...

Back to Top ↑

miscellaneous

5Charlie CTF - Blackjack 2.0

3 minute read

A write-up of the Blackjack 2.0 Python application security challenge from 5Charlie CTF.

5Charlie CTF - Blackjack

3 minute read

A write-up of the Blackjack Python application security challenge from 5Charlie CTF.

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secure-coding

5Charlie CTF - Blackjack 2.0

3 minute read

A write-up of the Blackjack 2.0 Python application security challenge from 5Charlie CTF.

5Charlie CTF - Blackjack

3 minute read

A write-up of the Blackjack Python application security challenge from 5Charlie CTF.

Back to Top ↑

steganography

5Charlie CTF - MP3 - Pop

less than 1 minute read

A write-up of the “Pop” audio steganography challenge from 5Charlie CTF.

5Charlie CTF - BMP

1 minute read

A write-up of the BMP image steganography challenge from 5Charlie CTF.

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cracking

5Charlie CTF - Disorderly2

8 minute read

A write-up of the Disorderly2 crypto challenge from 5Charlie CTF.

5Charlie CTF - Cracking

1 minute read

A write-up of the “Cracking” password cracking challenge from 5Charlie CTF.

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reverse-engineering

5Charlie CTF - Easy Too

2 minute read

A write-up of the “Easy Too” reverse engineering challenge from 5Charlie CTF.

5Charlie CTF - Myste-RE

less than 1 minute read

A write-up of the “Myste-RE” reverse-engineering challenge from 5Charlie CTF.

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vmware

RE: VMWare Workstation VLANs

3 minute read

Last year I wrote about using VLANs with VMWare Workstation with systemd-networkd. A year later, I’m still actively using this process in my day to day workf...

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

Back to Top ↑

vlans

RE: VMWare Workstation VLANs

3 minute read

Last year I wrote about using VLANs with VMWare Workstation with systemd-networkd. A year later, I’m still actively using this process in my day to day workf...

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

Back to Top ↑

virtualization

RE: VMWare Workstation VLANs

3 minute read

Last year I wrote about using VLANs with VMWare Workstation with systemd-networkd. A year later, I’m still actively using this process in my day to day workf...

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

Back to Top ↑

pivoting

Bypassing Linux Firewalls with Link-Local IPv6

6 minute read

During a King-of-the-Hill or Attack/Defend-style Capture the Flag exercise, defenders are under pressure to defend many hosts at once, to the best of their a...

Back to Top ↑

volatility

5Charlie CTF - 0day

7 minute read

A write-up of the 0day Windows memory forensics challenge from 5Charlie CTF.

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windows

5Charlie CTF - 0day

7 minute read

A write-up of the 0day Windows memory forensics challenge from 5Charlie CTF.

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elastic

5Charlie CTF - Korobochka

2 minute read

A write-up of the “Korobochka” Elastic hacking challenge from 5Charlie CTF.

Back to Top ↑

devops

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

Back to Top ↑

docker

5Charlie CTF - Odyssey

4 minute read

A write-up of the “Odyssey” container memory export forensic analysis challenge from 5Charlie CTF.

Back to Top ↑

troubleshooting

Linux Desktop Not Pulling An IPv6 Address

1 minute read

Configure your host firewall to allow DHCPv6 inbound.

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dhcpv6

Linux Desktop Not Pulling An IPv6 Address

1 minute read

Configure your host firewall to allow DHCPv6 inbound.

Back to Top ↑

vlan

Unifi CloudKey Gen2 Plus Dual Homing

4 minute read

UPDATE: Updates to the Unifi software now conflict with this configuration. I highly recommend finding an alternative solution as this will cause the Unifi P...

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unifi

Unifi CloudKey Gen2 Plus Dual Homing

4 minute read

UPDATE: Updates to the Unifi software now conflict with this configuration. I highly recommend finding an alternative solution as this will cause the Unifi P...

Back to Top ↑

ubiquiti

Unifi CloudKey Gen2 Plus Dual Homing

4 minute read

UPDATE: Updates to the Unifi software now conflict with this configuration. I highly recommend finding an alternative solution as this will cause the Unifi P...

Back to Top ↑

database

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

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sqli

5Charlie CTF - Plyushkin

1 minute read

A write-up of the Plyushkin SQLi challenge from 5Charlie CTF.

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arm

5Charlie CTF - Easy Too

2 minute read

A write-up of the “Easy Too” reverse engineering challenge from 5Charlie CTF.

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angr

5Charlie CTF - Easy Too

2 minute read

A write-up of the “Easy Too” reverse engineering challenge from 5Charlie CTF.

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privesc

5Charlie CTF - Escalator

6 minute read

A write-up of the “Escalator” privelege escalation challenge set from 5Charlie CTF.

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systemd

Using VLANs with VMWare on a Linux Desktop

5 minute read

UPDATE: I have written an easier, more robust guide that leverages NetworkManager and nmcli.

Back to Top ↑

encoding

5Charlie CTF - Disorderly2

8 minute read

A write-up of the Disorderly2 crypto challenge from 5Charlie CTF.

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encryption

5Charlie CTF - Disorderly2

8 minute read

A write-up of the Disorderly2 crypto challenge from 5Charlie CTF.

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