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CVE-2021-42009

Apache Traffic Control Traffic Ops Email Injection Vulnerability

MEDIUM
4.3
CVSS Score
Published: October 12, 2021 at 07:40 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
1 product affected across 1 vendorTraffic Control

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Severity
MEDIUM4.3
Exploit prediction
EPSS 3%

Description

An authenticated Apache Traffic Control Traffic Ops user with Portal-level privileges can send a request with a specially-crafted email subject to the /deliveryservices/request Traffic Ops endpoint to send an email, from the Traffic Ops server, with an arbitrary body to an arbitrary email address. Apache Traffic Control 5.1.x users should upgrade to 5.1.3 or 6.0.0. 4.1.x users should upgrade to 5.1.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Traffic Control· Apache
95%
4.0.0 ≤ v < Apache Traffic Control*4.1.0 ≤ v < 5.1.34.0.0
Affected range stops below 5.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below Apache Traffic Control*, so it looks safe — our inference, not a vendor statement

References (5)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/10/12/1
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r78d471d8a4fd268a4c5ae6c47327c09d9d4b4467c31da2c97422febb%40%3Cdev.trafficcontrol.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r7dfa9a89b39d06caeeeb7b5cdc41b3493a9b86cc6cfa059d3f349d87%40%3Cannounce.apache.org%3E
x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.apache.org/thread.html/re384fd0f44c6d230f31376153c6e8b59e4a669f927c1533d06d702af%40%3Cdev.trafficcontrol.apache.org%3E
x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://lists.apache.org/thread.html/rf0481b9e38ece1ece458d3ce7b2d671df819e3555597f31fc34f084e%40%3Ccommits.trafficcontrol.apache.org%3E

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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