CVE-2017-17382

published 2017-12-13

CVE-2017-17382: Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and…

Priority P3 40 medium 5.9 CVSS 3.0

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

Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22 might allow remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a ROBOT attack.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
citrix	application_delivery_controller_firmware	—	—
citrix	application_delivery_controller_firmware	—	—
citrix	application_delivery_controller_firmware	—	—
citrix	application_delivery_controller_firmware	—	—
citrix	netscaler_adc_gateway	—	—
citrix	netscaler_gateway_firmware	—	—
citrix	netscaler_gateway_firmware	—	—
citrix	netscaler_gateway_firmware	—	—
citrix	netscaler_gateway_firmware	—	—

Detection & IOCs extracted from sources · hover to see the quote

• → Vulnerable products are Citrix NetScaler ADC and NetScaler Gateway; detect exploitation attempts by monitoring for Bleichenbacher RSA padding oracle (ROBOT attack) patterns in TLS handshake traffic — repeated RSA key exchange attempts with crafted PKCS#1 v1.5 padding ↗

• · Vulnerable builds: NetScaler ADC/Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22. Ensure patched builds are deployed to remediate the ROBOT attack surface. ↗

CVSS provenance

nvd v3.0 5.9 MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd v2.0 4.3 MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N

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