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Fencer Vulns
high 8.7

CVE-2024-7558 json

JUJU_CONTEXT_ID is a predictable authentication secret

published 2024-10-02 2 y ago modified 2026-06-17 4 mo ago also GHSA-mh98-763h-m9v4 , GO-2024-3173 , EUVD-2024-3082

cvss
8.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value. This gives the unprivileged user access to the same information and tools as the Juju charm.

Patch / fix

  • go github.com/juju/juju 0.0.0-20240826044107-ecd7e2d0e986
  • Canonical Ltd. Juju 2.9.51, 3.1.10, 3.3.7, 3.4.6, 3.5.4
  • govulncheck-vulndb SLE Module for Package Hub 15 SP6, SLE Module for Package Hub 15 SP5, openSUSE Leap 15.6 +1 more 0.0.20241030T212825-150000.1.9.1

suse advisories SUSE-SU-2024:3911-1

  • govulncheck-vulndb Package Hub 12 0.0.20241104T154416-5.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20241030T212825-1.1

opensuse advisories openSUSE-SU-2024:0350-1openSUSE-SU-2024:14447-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/juju/juju/security/advisories/GHSA-mh98-763h-m9v4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.7 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
NVD 3.1 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 8.7 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/juju/juju
<0.0.0-20240826044107-ecd7e2d0e986
0.0.0-20240826044107-ecd7e2d0e986

Affected products

  • Canonical Ltd. Juju

Classification

Weakness
  • CWE-337 Predictable Seed in Pseudo-Random Number Generator (PRNG)
  • CWE-340 Generation of Predictable Numbers or Identifiers
  • CWE-1391 Use of Weak Credentials
  • CWE-330 Use of Insufficiently Random Values
  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.