RCE in Sapido Br270n
CVE-2021-4242
A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.031 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.031 · change: +0.001
Affected products
- Sapido Br270n
- Sapido Br270n Firmware — versions 2.1.03
- Sapido Brc76n
- Sapido Brc76n Firmware — versions 2.1.03
- Sapido Gr297
- Sapido Gr297n
- Sapido Gr297n Firmware — versions 2.1.3
- Sapido Rb-1732
- Sapido Rb1732
- Sapido Rb-1732 Firmware — versions 2.0.43
Weakness classification (CWE)
References
- blog.csdn.net/qq_44159028/article/details/114590267 (Exploit, Third Party Advisory)
- github.com/smallpiggy/Sapido--rce/blob/main/Sapido路由器-rce.py (Exploit, Third Party Advisory)
- vuldb.com/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4242?
- CVE-2021-4242 is a medium-severity vulnerability in Sapido Br270n, classified under CWE-707. CVSS score: 6.3/10. Published 2022-11-30.
- How severe is CVE-2021-4242?
- Medium severity. CVSS v3 base score is 6.3 out of 10.