CVE-2024-7558Public exploit

Charm tool access via predictable context identifiers

Published Oct 2, 2024 · Updated Oct 2, 2024

Predictable credentials in affected Canonical Juju releases allow local users to access charm hook tools through an abstract socket. ContextFactory seeds Go's noncryptographic PRNG with the startup time and embeds its Int63 output in JUJU_CONTEXT_ID without socket rate limiting. An unprivileged user in the same network namespace can guess the identifier during a running hook, invoke charm tools, and read secrets or act with the charm's authority.

CVSS severity8.7
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Predictable credentials in affected Canonical Juju releases allow local users to access charm hook tools through an abstract socket. ContextFactory seeds Go's noncryptographic PRNG with the startup time and embeds its Int63 output in JUJU_CONTEXT_ID without socket rate limiting. An unprivileged user in the same network namespace can guess the identifier during a running hook, invoke charm tools, and read secrets or act with the charm's authority.

The record

CVE
CVE-2024-7558
Published
Oct 2, 2024
Updated
Oct 2, 2024
Vendor
Canonical
Product
Juju
Classifications
CWE-1391, CWE-337, CWE-340, T1212
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.9 <2.9.51
  2. Affected versionversion=3.1 <3.1.10
  3. Affected versionversion=3.3 <3.3.7
  4. Affected versionversion=3.4 <3.4.6
  5. Affected versionversion=3.5 <3.5.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Canonical · Jujuversion=2.9 <2.9.51; version=3.1 <3.1.10; version=3.3 <3.3.7; version=3.4 <3.4.6; version=3.5 <3.5.4

Published CVSS scores

8.0NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7Canonical Ltd.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1391Use of Weak Credentials
CWE-337Predictable Seed in Pseudo-Random Number Generator (PRNG)
CWE-340Generation of Predictable Numbers or Identifiers
T1212Exploitation for Credential Access

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo