Target from: CVE Network
Intermediate, Rootable
CVE-2020-7247 / 0.0.0.0
4: Flags (2:system, env, root)
1: Service
3,600 pts
Level 17 / Junior Hax0r
markuche / 57th Place
4: Flags found
1: Service discovered
3,600 pts
8 minutes
This is a target running a vulnerable OpenSMTPD instance of CVE-2020-7247.
Description
A vulnerability discovered in OpenSMTPD, OpenBSD's mail server was exploitable since May 2018 (commit a8e222352f, "switch smtpd to new grammar") and allows an attacker to execute arbitrary shell commands, as root
Environment details
The system is accessible at 10.0.100.33 and runs OpenSMTPD on Debian Buster on the default port (25/tcp).
Flags can be found at the usual places:
/root/etc/passwdgecos/etc/shadowpassword hashenvvariable
References
54 Headshots (newer first)
c0nfirm, alisa, hackercon101, D4rkZone, michyamrane, snipeXZ, mokrates, darklordbnl, falconsec, 44756D6D506C61796572, BlackAnon, luismtzsilva, ks4v3r, Winsad, L0v3, jaxafed, dogolinho, antonioban, noothermarkuche, Twelve, 0xRaef, M4sk0ff, Grosik, 0x1337, sirEgghead, JDgodd, ElleuchX1, Muzec, wonderchild, R4V3N, hacker, g0rchy, jinake, biba22, Pegasus, rootz, M96oL, vvip1337, Wh04m1, r0b0tG4nG, sn1per, TheCyberGeek, galoget, 0xRar, lMinzarl, PufferOverflow, R4kan, AKMalware, L0n3lyW0lfActivity Stream
Latest activity on the platform
markuche Gained access to data stored in environmental variables from CVE-2020-7247 for 700 points, 23 months ago markuche Discovered the ETSCTF username flag under the /etc/shadow file from CVE-2020-7247 for 1000 points, 23 months ago markuche Discovered the ETSCTF username gecos flag under the /etc/passwd file from CVE-2020-7247 for 800 points, 23 months ago