CVE-2022-34746

published 2022-09-20

CVE-2022-34746: An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900…

Priority P4 33 medium 5.9 CVSS 3.1

AV N AC H PR N UI N S U C H I N A N

An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900 series firmware versions prior to V2.70. This vulnerability could allow an unauthenticated attacker to retrieve a private key by factoring the RSA modulus N in the certificate of the web administration interface.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
zyxel	gs1900-10hp_firmware	< 2.70\(aazi.3\)c0	2.70\(aazi.3\)c0
zyxel	gs1900-16_firmware	< 2.70\(aahj.3\)c0	2.70\(aahj.3\)c0
zyxel	gs1900-24_firmware	< 2.70\(aahl.3\)c0	2.70\(aahl.3\)c0
zyxel	gs1900-24e_firmware	< 2.70\(aahk.3\)c0	2.70\(aahk.3\)c0
zyxel	gs1900-24ep_firmware	< 2.70\(abto.3\)c0	2.70\(abto.3\)c0
zyxel	gs1900-24hpv2_firmware	< 2.70\(abtp.3\)c0	2.70\(abtp.3\)c0
zyxel	gs1900-48_firmware	< 2.70\(aahn.3\)c0	2.70\(aahn.3\)c0
zyxel	gs1900-48hpv2_firmware	< 2.70\(abtq.3\)c0	2.70\(abtq.3\)c0
zyxel	gs1900-8_firmware	< 2.70\(aahh.3\)c0	2.70\(aahh.3\)c0
zyxel	gs1900-8hp_firmware	< 2.70\(aahi.3\)c0	2.70\(aahi.3\)c0
zyxel	zyxel_gs1900_series_firmware	< V2.70	V2.70

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CWE-331