VulnerabilityModified
CVE-2022-4499
By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.
HIGH 7.5EPSS 0.71%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.71% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- tp-link/archer c5 firmware · tp-link/tl-wr710n firmware
- Source
- cret@cert.org
References
- https://kb.cert.org/vuls/id/572615Third Party Advisory, VDB Entry
- https://kb.cert.org/vuls/id/572615Third Party Advisory, VDB Entry
- https://www.kb.cert.org/vuls/id/572615
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.