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KLCERT-18-013: Eltex ESR-200 Router Information Disclosure

Kaspersky Lab publishes information on newly identified vulnerabilities in order to raise user awareness of the IT security threats detected. Kaspersky Lab does not make any guarantees in respect of information received from vendors of products in which vulnerabilities have been identified, which is included in the following sections of the advisory: Affected Products, Vendor Mitigation.

KL-IDS KLCERT-18-013
CVE-IDS CVE-2018-15357
Publication date 2018.08.17
Researcher Alexander Nochvay, Kaspersky Lab ICS CERT
Andrey Muravitsky, Kaspersky Lab ICS CERT
Description A authenticated attacker with low privileges can extract password hash information for all users.
Impact A authenticated attacker can expand attack surface by analysis of disclosed information.
Severity
CVSS v3 Base Score: 6.5
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability Remotely
Difficulty Low
User interaction None
Existence of exploit Unknown
Affected products
Affected products Eltex ESR-200 firmware version 1.2.0
Mitigation
Vendor mitigation Update firmware: ver 1.3.0
Timeline May 2017 – Vulnerabilities reported
June 2017 – First feedback from vendor
October 2017 – Patch available
August 2018 – Vendor notified that patch is available