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CVE-2024-541439.3CriticalCWE-328

CVE-2024-54143: openwrt/asu allows build artifact poisoning via truncated SHA-256 hash and command injection

openwrt · asu

Affected: openwrt asu · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.8%probability of exploitation in the next 30 days
79th percentile
050100

Higher than 79% of scored CVEs

9.3CriticalCVSS 4.0
LowCrit.

DescriptionCVE.org

openwrt/asu is an image on demand server for OpenWrt based distributions. The request hashing mechanism truncates SHA-256 hashes to only 12 characters. This significantly reduces entropy, making it feasible for an attacker to generate collisions. By exploiting this, a previously built malicious image can be served in place of a legitimate one, allowing the attacker to "poison" the artifact cache and deliver compromised images to unsuspecting users. This can be combined with other attacks, such as a command injection in Imagebuilder that allows malicious users to inject arbitrary commands into the build process, resulting in the production of malicious firmware images signed with the legitimate build key. This has been patched with 920c8a1.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • openwrt · asu< 920c8a1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
openwrt
Published
December 2024

CoverageNo articles yet

No CyberSIXT article names CVE-2024-54143 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References