Remote code execution TP-LINK TL-WR841N
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-17147 |
| CWE-ID | CWE-119 |
| Exploitation vector | Local network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
TL-WR841N Hardware solutions / Routers for home users |
| Vendor | TP-Link |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU23056
Risk: Low
CVSSv3.1: 7.9 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-17147
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper bounds checking by the "http_parser_main" function in the web service. A remote attacker on the local network can send a specially crafted HTTP Host request header, trigger memory corruption and execute arbitrary code in the context of the admin user.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsTL-WR841N: before 14.191119
CPE2.3 External linkshttp://www.zerodayinitiative.com/advisories/ZDI-19-992/
http://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
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. However, proof of concept for this vulnerability is available.
