CVE-2023-38522 — HTTP Request Smuggling in Apache Traffic Server

CWE-444 — HTTP Request SmugglingCWE-20 — Improper Input ValidationCWE-86 — Improper Neutralization of Invalid Characters in Identifiers in Web Pages5 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 41.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apache Traffic ServerApache Software Foundation Apache Traffic Server
Timeline
PublishedJul 26

Description

Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests 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 are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes the issue.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDapache/traffic_server8.0.0 — 8.1.11+1

🔴Vulnerability Details

3
GHSA
GHSA-68qf-xhq3-9qj5: Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers↗2024-07-26
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OSV
CVE-2023-38522: Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers↗2024-07-26
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CVEList
Apache Traffic Server: Incomplete field name check allows request smuggling↗2024-07-26
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📋Vendor Advisories

1
Debian
CVE-2023-38522: trafficserver - Apache Traffic Server accepts characters that are not allowed for HTTP field nam...↗2023
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CVE-2023-38522 — HTTP Request Smuggling in Apache | cvebase