Paper/Archive/CVE-2024-35161

CVE-2024-35161

Apache Software Foundation Apache Traffic Server — Apache Traffic Server: Incomplete check for chunked trailer section allows request smuggling

EPSS 1.0%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (ADP)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 61.9.619 × 2012.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Apache Traffic Server forwards malformed HTTP chunked trailer section to origin servers. This can be utilized for request smuggling and may also lead cache poisoning if the origin servers are vulnerable. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.10, from 9.0.0 through 9.2.4. Users can set a new setting (proxy.config.http.drop_chunked_trailers) not to forward chunked trailer section. Users are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes the issue.

Affected

ProductAffectedFixed inSource

Apache Traffic Server8.0.0 – 8.1.10–CNA

Apache Traffic Server9.0.0 – 9.2.4–CNA

traffic_server8.0.0 – 8.1.10–CISA-ADP

traffic_server9.0.0 – 9.2.4–CISA-ADP

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorylists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0 reflists.debian.org/debian-lts-announce/2024/09/msg00040.html