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CVE-2023-1521

Mozilla Sccache remote code execution

7.8 HIGHPublic exploitEPSS 0.36%
  1. Published26 Nov 2024

Description

On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Mozilla Sccache< 0.4.0

Remediation

Fixed in
Mozilla Sccache≥ 0.4.0

References

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Frequently asked

Is CVE-2023-1521 being actively exploited?

CVE-2023-1521 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.36%.

How severe is CVE-2023-1521?

CVE-2023-1521 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.36% probability of exploitation.

Which products are affected by CVE-2023-1521?

Affected products include Mozilla Sccache.

How do I fix CVE-2023-1521?

Upgrade affected software to a fixed version, for example Mozilla Sccache 0.4.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.