CVEvulnerability

CVE-2019-19825

9.8 CRITICAL Published 2020-01-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-01-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-287

Description

On certain TOTOLINK Realtek SDK based routers, the CAPTCHA text can be retrieved via an {"topicurl":"setting/getSanvas"} POST to the boafrm/formLogin URI, leading to a CAPTCHA bypass. (Also, the CAPTCHA text is not needed once the attacker has determined valid credentials. The attacker can perform router actions via HTTP requests with Basic Authentication.) 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, and N100RE through 3.4.0.

Affected configurations

• totolink a3002ru firmware (<= 2.0.0) • totolink a702r firmware (<= 2.1.3) • totolink n301rt firmware (<= 2.1.6) • totolink n302r firmware (<= 3.4.0) • totolink n300rt firmware (<= 3.4.0) • totolink n200re firmware (<= 4.0.0) • totolink n150rt firmware (<= 3.4.0) • totolink n100re firmware (<= 3.4.0)

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References