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CVE-2020-9484

Vulnerability in N/a Apache Tomcat

CVSS score

7.0

EPSS probability

%55.5

Risk score

3.9

Published

6 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

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Vulnerability description

DayBreach CVE AI Research

CVE-2020-9484 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2020-9484 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1n/aApache Tomcat View
2apachetomcat View
3apachetomcat View
4apachetomcat View
5apachetomcat View
6apachetomcat View
7debiandebian linux View
8debiandebian linux View
9debiandebian linux View
10opensuseleap View
11fedoraprojectfedora View
12fedoraprojectfedora View
13canonicalubuntu linux View
14canonicalubuntu linux View
15oracleagile engineering data management View
16oracleagile product lifecycle management View
17oracleagile product lifecycle management View
18oracleagile product lifecycle management View
19oraclecommunications cloud native core binding support function View
20oraclecommunications cloud native core policy View
21oraclecommunications diameter signaling router View
22oraclecommunications element manager View
23oraclecommunications instant messaging server View
24oraclecommunications session report manager View
25oraclecommunications session route manager View
26oracledatabase View
27oracledatabase View
28oracledatabase View
29oraclefmw platform View
30oraclefmw platform View
31oraclehospitality guest access View
32oraclehospitality guest access View
33oracleinstantis enterprisetrack View
34oraclemanaged file transfer View
35oraclemanaged file transfer View
36oraclemysql enterprise monitor View
37oracleretail order broker View
38oraclesiebel apps - marketing View
39oraclesiebel ui framework View
40oracletransportation management View
41oracleworkload manager View
42oracleworkload manager View
43oracleworkload manager View
44mcafeeepolicy orchestrator View
45mcafeeepolicy orchestrator View
46mcafeeepolicy orchestrator View
47mavenorg.apache.tomcat:tomcat-catalina View
48mavenorg.apache.tomcat:tomcat-catalina View
49mavenorg.apache.tomcat:tomcat-catalina View
50mavenorg.apache.tomcat:tomcat-catalina View
51mavenorg.apache.tomcat.embed:tomcat-embed-core View
52mavenorg.apache.tomcat.embed:tomcat-embed-core View
53mavenorg.apache.tomcat.embed:tomcat-embed-core View
54mavenorg.apache.tomcat.embed:tomcat-embed-core View
55mavenorg.apache.tomcat:tomcat-catalina View
56mavenorg.apache.tomcat:tomcat-catalina View
57mavenorg.apache.tomcat:tomcat-catalina View
58mavenorg.apache.tomcat:tomcat-catalina View
59mavenorg.apache.tomcat.embed:tomcat-embed-core View
60mavenorg.apache.tomcat.embed:tomcat-embed-core View
61mavenorg.apache.tomcat.embed:tomcat-embed-core View
62mavenorg.apache.tomcat.embed:tomcat-embed-core View
Total affected vendors: 9|Products: 62

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
7.0CVSS 3.x—Vector not publishedGitHub Advisory
7.0CVSS V31HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD
4.4CVSS V2—AV:L/AC:M/Au:N/C:P/I:P/A:PNVD
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

16 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

osvorg.apache.tomcat:tomcat-catalina10.0.0-M5

OSV düzeltilmiş sürüm: 10.0.0-M5

osvorg.apache.tomcat:tomcat-catalina9.0.35

OSV düzeltilmiş sürüm: 9.0.35

osvorg.apache.tomcat:tomcat-catalina8.5.55

OSV düzeltilmiş sürüm: 8.5.55

osvorg.apache.tomcat:tomcat-catalina7.0.104

OSV düzeltilmiş sürüm: 7.0.104

osvorg.apache.tomcat.embed:tomcat-embed-core10.0.0-M5

OSV düzeltilmiş sürüm: 10.0.0-M5

osvorg.apache.tomcat.embed:tomcat-embed-core9.0.35

OSV düzeltilmiş sürüm: 9.0.35

osvorg.apache.tomcat.embed:tomcat-embed-core8.5.55

OSV düzeltilmiş sürüm: 8.5.55

osvorg.apache.tomcat.embed:tomcat-embed-core7.0.104

OSV düzeltilmiş sürüm: 7.0.104

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
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-2020-9484 is associated with the following CWEs:

CWE-502: Deserialization of Untrusted Data

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-2020-9484 weaknesses.

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

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

[tomcat-users] 20200521 Re: [SECURITY] CVE-2020-9484 Apache Tomcat Remote Code Execution via session persistencevendor-advisory[debian-lts-announce] 20200523 [SECURITY] [DLA 2217-1] tomcat7 security updatevendor-advisory[tomcat-users] 20200524 Re: [SECURITY] CVE-2020-9484 Apache Tomcat Remote Code Execution via session persistencevendor-advisoryopenSUSE-SU-2020:0711vendor-advisory[tomcat-dev] 20200527 Re: [SECURITY] CVE-2020-9484 Apache Tomcat Remote Code Execution via session persistencevendor-advisory[debian-lts-announce] 20200528 [SECURITY] [DLA 2209-1] tomcat8 security updatevendor-advisory20200602 [CVE-2020-9484] Apache Tomcat RCE via PersistentManagervendor-advisoryGLSA-202006-21vendor-advisoryFEDORA-2020-ce396e7d5cvendor-advisoryFEDORA-2020-d9169235a8vendor-advisory

CVSS Vector Radar Chart

7.0 / 10
Attack VectorLocalComplexityHighPrivilegesLowUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

16 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

N
n/a logo
n/a
A
apache logo
apache
D
debian logo
debian
O
opensuse logo
opensuse
F
fedoraproject logo
fedoraproject
C
canonical logo
canonical

Weakness Type (CWE & CAPEC)

CWE-502

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