Huawei CloudEngine 6800 V100R006C00, CloudEngine 7800 V100R006C00, CloudEngine 8800 V100R006C00, and CloudEngine 12800 V100R006C00 allow rem

Affected versions

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

• huawei cloudengine 12800 firmwarev100r006c00
• huawei cloudengine 6800 firmwarev100r006c00
• huawei cloudengine 7800 firmwarev100r006c00
• huawei cloudengine 8800 firmwarev100r006c00

Versions reported by the vendor

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

• n/a CloudEngine 6800, CloudEngine 7800, CloudEngine 8800, CloudEngine 12800 CloudEngine 6800 V100R006C00,CloudEngine 7800 V100R006C00,CloudEngine 8800 V100R006C00,CloudEngine 12800 V100R006C00,

  • CloudEngine 6800, CloudEngine 7800, CloudEngine 8800, CloudEngine 12800 CloudEngine 6800 V100R006C00,CloudEngine 7800 V100R006C00,CloudEngine 8800 V100R006C00,CloudEngine 12800 V100R006C00,affected

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

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

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

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

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