Zbtlink MQWrt yunmgrd Cloud C2 Implant
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: poc
- Automatable: yes
- Technical impact: total
Summary
Zbtlink L3_V2_8 firmware 3.0.0.4.528, Zbtlink WE826-T2 firmware 19.1101, Zbtlink ZBT-7628 firmware 1.0.0.2.007, Zbtlink ZBT-ZBT7621 firmware 1.0.0.3.001, MoreQuick MQAC-7620, MQAC-7620A, MQAP-7620, MQAP-7620A, and MQAP-7628 firmware 1.0.0.2.000, AP522 firmware 1.0.0.2.014, AP7628 and HC5661A firmware 3.0.0.4.380, APG721B firmware 19.0809, HK300 firmware 1.0.0.2.032, and MAP-N10 firmware 1.0.0.2.044 ship a backdoor command-and-control implant (yunmgrd) reachable over an unauthenticated cleartext UDP channel to a hardcoded C2 server. A remote unauthenticated attacker on the network path can hijack the channel and execute arbitrary commands as root. The attacker can also modify DNS entries, exfiltrate PPPoE credentials, and open reverse SSH tunnels.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- Zbtlink L3_V2_8
3.0.0.4.528
- Zbtlink WE826-T2
19.1101
- Zbtlink ZBT-7628
1.0.0.2.007
- Zbtlink ZBT-ZBT7621
1.0.0.3.001
- MoreQuick MQAC-7620
1.0.0.2.000
- MoreQuick MQAC-7620A
1.0.0.2.000
- MoreQuick MQAP-7620
1.0.0.2.000
- MoreQuick MQAP-7620A
1.0.0.2.000
- MoreQuick MQAP-7628
1.0.0.2.000
- Unknown AP522
1.0.0.2.014
- Unknown AP7628
3.0.0.4.380
- Unknown APG721B
19.0809
- Unknown HC5661A
3.0.0.4.380
- Unknown HK300
1.0.0.2.032
- Unknown MAP-N10
1.0.0.2.044