Tenda i22 apPortalAccessCodeAuth formApPortalAccessCodeAuth buffer overflow

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• tenda i22 firmware1.0.0.3(4687)

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

• Tenda i22

  • 1.0.0.3(4687)affected

Other highest-scoring records for the same primary product.

• CVE-2024-4252Tenda i22 formSetUrlFilterRule stack-based overflow
  35Monitor
• CVE-2024-7585Tenda i22 apPortalAuth formApPortalWebAuth buffer overflow
  34Monitor
• CVE-2024-7584Tenda i22 apPortalPhoneAuth formApPortalPhoneAuth buffer overflow
  34Monitor
• CVE-2024-7583Tenda i22 apPortalOneKeyAuth formApPortalOneKeyAuth buffer overflow
  34Monitor
• CVE-2022-45672Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the formWx3AuthorizeSet function.
  33Monitor
• CVE-2022-45666Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the list parameter in the formwrlSSIDset function.
  30Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.