CVE-2017-7696

Sso Authentication Library vulnerability

CVSS

7.5

EPSS

36.2%

EPSS pct

98th

Exploited

No known

SAP AS JAVA SSO Authentication Library 2.0 through 3.0 allow remote attackers to cause a denial of service (memory consumption) via large values in the width and height parameters to otp_logon_ui_resources/qr, aka SAP Security Note 2389042.

Affected vendor

Sap

Affected product

Sso Authentication Library

CVSS vector

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

Weakness type (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Published

2017-04-14

Risk analysis

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

Its EPSS score of 36.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2017-7696

Confirm whether Sap Sso Authentication Library is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-7696.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-7696

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-7696 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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