Vulnerability Details : CVE-2018-9129
ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.
Products affected by CVE-2018-9129
- cpe:2.3:o:zyxel:zywall_110_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:zywall_1100_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:zywall_310_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:zywall_vpn_50_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:zywall_vpn_100_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:zywall_vpn_300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_20w_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_40_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_40w_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_60_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_60w_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_110_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_2200-vpn_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_310_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_1100_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_1900_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:usg_20w-vpn_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-9129
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-9129
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
2.2
|
3.6
|
NIST |
References for CVE-2018-9129
-
https://web-in-security.blogspot.com/2018/08/practical-bleichenbacher-attacks-on-ipsec-ike.html
On Web-Security and -Insecurity: Practical Bleichenbacher Attacks on IPsec IKEThird Party Advisory
-
ftp://ftp.zyxel.com/USG110/firmware/USG110_4.32(AAPH.0)C0_2.pdf
Release Notes;Vendor Advisory
-
https://www.zyxel.com/support/bleichenbacher_attack_vulnerability.shtml
Zyxel security advisory for the Bleichenbacher’s attack vulnerability of ZyWALL/USG devices | ZyxelPatch;Vendor Advisory
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