Remote code execution in multiple D-Link routers
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-41140 |
| CWE-ID | CWE-121 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
DIR-878 Hardware solutions / Routers & switches, VoIP, GSM, etc DIR-882-US Hardware solutions / Routers & switches, VoIP, GSM, etc DIR-867 Hardware solutions / Routers for home users |
| Vendor | D-Link |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Stack-based buffer overflow
EUVDB-ID: #VU67536
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2022-41140
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the lighttpd service when handling HTTP requests. A remote unauthenticated attacker can send a specially crafted HTTP request to port 80/tcp on the affected device, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
| Model | Hardware Revision | Affected FW | Fixed FW | Recommendation | Last Updated |
| DIR-867 | All Ax Hardware Revisions | v1.30B07 & Below | Under Development |
Pending Release |
03/04/2022 |
| DIR-878 | All Ax Hardware Revisions | v1.30B08-Hotfix & Below | v1.30b08_Beta_Hotfix | Upgrade to Beta Hotfix | 04/01/2022 |
| DIR-882-US | All Ax Hardware Revisions | v1.30B06-Hotfix & Below | Under Development | Pending Release | 03/04/2022 |
DIR-878: v1.20b03_Hotfix - 1.30B08-Hotfix
DIR-882-US: v1.10b04 - 1.30B06-Hotfix
DIR-867: 1.30B07
CPE2.3- cpe:2.3:h:d-link:dir-878:v1.20b03_Hotfix:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-878:v1.30b10Beta:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-878:1.30B08-Hotfix:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-882-us:v1.10b04:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-882-us:v1.30b10Beta:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-882-us:1.30B06-Hotfix:*:*:*:*:*:*:*
- cpe:2.3:h:d-link:dir-867:1.30B07:*:*:*:*:*:*:*
https://www.zerodayinitiative.com/advisories/ZDI-22-1290/
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10291
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
