CVE-2017-1000385

Erlang\/Otp vulnerability

CVSS

5.9

EPSS

22.1%

EPSS pct

97th

Exploited

No known

The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key (this is a variation of the Bleichenbacher attack).

Affected vendor

Erlang

Affected product

Erlang\/Otp

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type (CWE)

CWE-203

Published

2017-12-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 22.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-1000385

Confirm whether Erlang Erlang\/Otp is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-1000385.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-1000385

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