CVE-2016-10743 — hostapd before 2

hostapd before 2.6 does not prevent use of the low-quality PRNG that is reached by an os_random() function call.

01What is this vulnerability?

hostapd before 2.6 does not prevent use of the low-quality PRNG that is reached by an os_random() function call.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2019-03-23T18:55:50.000Z
• Last modified: 2024-08-06T03:30:20.386Z

09References

• w1.fi — https://w1.fi/cgit/hostap/commit/?id=98a516eae8260e6fd5c48ddecf8d006285da7389
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/03/msg00035.html
• usn.ubuntu.com — https://usn.ubuntu.com/3944-1/
• www.openwall.com — http://www.openwall.com/lists/oss-security/2020/02/27/1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2020/02/27/2
• seclists.org — http://seclists.org/fulldisclosure/2020/Feb/26
• packetstormsecurity.com — http://packetstormsecurity.com/files/156573/Hostapd-Insufficient-Entropy.html