7.8

CVE-2019-19191: shibboleth service_provider Link Following

CVSS: 7.8v3.1HighModified
AliasesSUSE-SU-2019:3386-1SUSE-SU-2020:0115-1DEBIAN-CVE-2019-19191
Published 21-11-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-19191 is a high (CVSS 7.8) Link Following vulnerability in shibboleth service_provider. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.50%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:11381-1

Timeline

  1. 21-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Shibboleth Service Provider (SP) 3.x before 3.1.0 shipped a spec file that calls chown on files in a directory controlled by the service user (the shibd account) after installation. This allows the user to escalate to root by pointing symlinks to files such as /etc/shadow.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.50%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

+0.02 pp

From 0.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.suse.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse21 products
  • shibboleth-sp&distro=HPE Helion OpenStack 8< 2.5.5-6.6.1
  • shibboleth-sp&distro=SUSE Enterprise Storage 5< 2.5.5-6.6.1
  • shibboleth-sp&distro=SUSE Linux Enterprise Module for Server Applications 15< 2.6.1-3.3.1
  • shibboleth-sp&distro=SUSE Linux Enterprise Module for Server Applications 15 SP1< 2.6.1-3.3.1
  • shibboleth-sp&distro=SUSE Linux Enterprise Server 12 SP1-LTSS< 2.5.5-6.6.1
Debian1 product
  • shibboleth-sp< 3.1.0+dfsg1-2
Opensuse1 product
  • shibboleth-sp&distro=openSUSE Leap 15.1< 2.6.1-lp151.3.3.1
Shibboleth1 product

4 vendors · 24 products

References

9 links