Buffer overflow in ASUS Asuswrt

CVE-2017-15655

Multiple buffer overflow vulnerabilities exist in the HTTPd server in Asus asuswrt version <=3.0.0.4.376.X. All have been fixed in version 3.0.0.4.378, but this vulnerability was not previously disclosed. Some end-of-life routers have this version as the newest and thus are vulnerable at this time. This vulnerability allows for RCE with administrator rights when the administrator visits several pages.

Vulnerability class: Buffer Overflow

EPSS: 0.031 (86.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-15655?
CVE-2017-15655 is a critical-severity vulnerability in ASUS Asuswrt, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.6/10. Published 2018-01-31.
How severe is CVE-2017-15655?
Critical severity. CVSS v3 base score is 9.6 out of 10.