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CVE-2021-25122Suited to automated attack · CISA

Apache Tomcat h2c request mix-up

CVSS score

7.5

EPSS probability

%18.1

Risk score

1.4

Published

5 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2021-25122 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2021-25122 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Apache Software FoundationApache Tomcat View
2apachetomcat View
3apachetomcat View
4apachetomcat View
5apachetomcat View
6debiandebian linux View
7debiandebian linux View
8oracleagile product lifecycle management View
9oracleagile product lifecycle management View
10oraclecommunications cloud native core policy View
11oraclecommunications cloud native core security edge protection proxy View
12oraclecommunications instant messaging server View
13oracledatabase View
14oracledatabase View
15oracledatabase View
16oraclegraph server and client View
17oraclegraph server and client View
18oracleinstantis enterprisetrack View
19oracleinstantis enterprisetrack View
20oracleinstantis enterprisetrack View
21oraclemanaged file transfer View
22oraclemanaged file transfer View
23oraclemysql enterprise monitor View
24oraclesiebel ui framework View
25mavenorg.apache.tomcat.embed:tomcat-embed-core View
26mavenorg.apache.tomcat.embed:tomcat-embed-core View
27mavenorg.apache.tomcat.embed:tomcat-embed-core View
28mavenorg.apache.tomcat:tomcat-coyote View
29mavenorg.apache.tomcat.embed:tomcat-embed-core View
30mavenorg.apache.tomcat.embed:tomcat-embed-core View
31mavenorg.apache.tomcat.embed:tomcat-embed-core View
32mavenorg.apache.tomcat:tomcat-coyote View
Total affected vendors: 5|Products: 32

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.5CVSS 3.x—Vector not publishedGitHub Advisory
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD
5.0CVSS V2—AV:N/AC:L/Au:N/C:P/I:N/A:NNVD
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

7 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

osvorg.apache.tomcat.embed:tomcat-embed-core10.0.2

OSV düzeltilmiş sürüm: 10.0.2

osvorg.apache.tomcat.embed:tomcat-embed-core9.0.43

OSV düzeltilmiş sürüm: 9.0.43

osvorg.apache.tomcat.embed:tomcat-embed-core8.5.63

OSV düzeltilmiş sürüm: 8.5.63

osvorg.apache.tomcat:tomcat-coyote10.0.2

OSV düzeltilmiş sürüm: 10.0.2

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-25122 is associated with the following CWEs:

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-25122 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cannounce.tomcat.apache.org%3Evendor-advisory[tomcat-users] 20210301 [SECURITY] CVE-2021-25122 Apache Tomcat h2c request mix-upvendor-advisory[tomcat-dev] 20210301 [SECURITY] CVE-2021-25122 Apache Tomcat h2c request mix-upvendor-advisory[tomcat-dev] 20210301 svn commit: r1887027 - in /tomcat/site/trunk: docs/security-10.html docs/security-7.html docs/security-8.html docs/security-9.html xdocs/security-10.xml xdocs/security-7.xml xdocs/security-8.xml xdocs/security-9.xmlvendor-advisory[announce] 20210301 [SECURITY] CVE-2021-25122 Apache Tomcat h2c request mix-upvendor-advisory[oss-security] 20210301 CVE-2021-25122: Apache Tomcat h2c request mix-upvendor-advisory[tomcat-users] 20210305 RE: [SECURITY] CVE-2021-25122 Apache Tomcat h2c request mix-upvendor-advisory[tomcat-users] 20210305 Re: [SECURITY] CVE-2021-25122 Apache Tomcat h2c request mix-upvendor-advisory[debian-lts-announce] 20210316 [SECURITY] [DLA 2596-1] tomcat8 security updatevendor-advisoryDSA-4891vendor-advisory

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama doğrulandı

7 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

AS
Apache Software Foundation logo
Apache Software Foundation
A
apache logo
apache
D
debian logo
debian
O
oracle logo
oracle
M
maven logo
maven

Weakness Type (CWE & CAPEC)

CWE-200

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