RCE in Totolink A3002ru
CVE-2019-19824
On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.251 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.251 · newest: 0.251 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sploit.tech (Exploit, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Jan/36 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/156083/Realtek-SDK-Information-Disclosure-Code-Ex… (Exploit, VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Jan/38 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- github.com/yckuo-sdc/totolink-boa-api-vulnerabilities
Frequently asked questions
- What is CVE-2019-19824?
- CVE-2019-19824 is a high-severity vulnerability in Totolink A3002ru, classified under OS Command Injection. CVSS score: 8.8/10. Published 2020-01-27.
- How severe is CVE-2019-19824?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-19824 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.