TOTOLINK AC1200 T8 setDiagnosisCfg buffer overflow

Affected versions

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

• totolink t8 firmware4.1.5cu.862_b20230228

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.

• TOTOLINK AC1200 T8

  • 4.1.5cu.862_B20230228affected

Other highest-scoring records for the same primary product.

• CVE-2023-24157A command injection vulnerability in the serverIp parameter in the function updateWifiInfo of TOTOLINK T8 V4.1.5cu allows attackers to execu
  40Plan
• CVE-2023-24156A command injection vulnerability in the ip parameter in the function recvSlaveUpgstatus of TOTOLINK T8 V4.1.5cu allows attackers to execute
  40Plan
• CVE-2023-24154TOTOLINK T8 V4.1.5cu was discovered to contain a command injection vulnerability via the slaveIpList parameter in the function setUpgradeFW.
  40Plan
• CVE-2023-24153A command injection vulnerability in the version parameter in the function recvSlaveCloudCheckStatus of TOTOLINK T8 V4.1.5cu allows attacker
  40Plan
• CVE-2023-24152A command injection vulnerability in the serverIp parameter in the function meshSlaveUpdate of TOTOLINK T8 V4.1.5cu allows attackers to exec
  40Plan
• CVE-2023-24151A command injection vulnerability in the ip parameter in the function recvSlaveCloudCheckStatus of TOTOLINK T8 V4.1.5cu allows attackers to
  40Plan

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.