CVE-2019-5253 — E5572-855 with versions earlier than 8

E5572-855 with versions earlier than 8.0.1.3(H335SP1C233) has an improper authentication vulnerability. The device does not perform a sufficient authentication when doing certain operations, successful exploit could allow an attacker to cause the device to reboot after launch a m

01What is this vulnerability?

E5572-855 with versions earlier than 8.0.1.3(H335SP1C233) has an improper authentication vulnerability. The device does not perform a sufficient authentication when doing certain operations, successful exploit could allow an attacker to cause the device to reboot after launch a man in the middle attack.

02Affected products

Vendor	Product	Versions
n	a / E5572	855 — Versions earlier than 8.0.1.3(H335SP1C233)

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-12-13T21:25:46.000Z
• Last modified: 2024-08-04T19:47:56.894Z

09References

• www.huawei.com — http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191204-04-dos-en