CVE-2017-5521
What it is
An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices. They are prone to password disclosure via simple crafted requests to the web management server. The bug is exploitable remotely if the remote management option is set, and can also be exploited given access to the router over LAN or WLAN. When trying to access the web panel, a user is asked to authenticate; if the authentication is canceled and password recovery is not enabled, the user is redirected to a page that exposes a password recovery token. If a user supplies the correct token to the page /passwordrecovered.cgi?id=TOKEN (and password recovery is not enabled), they will receive the admin password for the router. If password recovery is set the exploit will fail, as it will ask the user for the recovery questions that were previously set when enabling that feature. This is persistent (even after disabling the recovery option, the exploit will fail) because the router will ask for the security questions.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2022-09-08 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2022-09-29 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 89.4% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2022-09-08
- Exploit probability
- 89.4% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Netgear r6200 Firmware 1.0.1.56_1.0.43
- Netgear r6300 Firmware 1.0.2.78_1.0.58
- Netgear vegn2610 Firmware 1.0.0.36
- Netgear ac1450 Firmware 1.0.0.34_10.0.16
- Netgear wnr1000v3 Firmware 1.0.2.68_60.0.93
- Netgear wndr3700v3 Firmware 1.0.0.40_1.0.32
- Netgear wndr4000 Firmware 1.0.2.4_9.1.86
- Netgear wndr4500 Firmware 1.0.1.44_1.0.73
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-5521.md and follow it. Check whether this project is affected by CVE-2017-5521. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability
- http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability
References
- http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability
- http://www.securityfocus.com/bid/95457
- https://www.exploit-db.com/exploits/41205/
- http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability
- http://www.securityfocus.com/bid/95457
- https://www.exploit-db.com/exploits/41205/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-5521