7.6
HIGH CVSS 3.1
CVE-2021-38448
Apache Struts Code Injection Vulnerability
Description

The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.

INFO

Published Date :

Nov. 22, 2021, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 6:17 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-38448 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Trane symbio_700
2 Trane symbio_800
3 Trane odyssey_split_systems
4 Trane intellipak_1
5 Trane intellipak_2
6 Trane ascend_air-cooled_chiller_acr
: Total Affected Vendor : 1 | Products : 6
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Follow the instructions below to mitigate the CVE-2021-38448 vulnerability.
The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov. Affected users should contact a Trane office to make arrangements to install updated firmware or to request additional information. Please reference Trane service database number HUB-205962 when contacting Trane. Trane recommends the applications below be updated to the versions listed below. Symbio 700: - Odyssey Split Systems: All versions prior to v1.00.0023 Symbio 800: - IntelliPak Rooftop Air Conditioner: All versions prior to v1.30.0008 - Ascend Air-cooled Chiller Model ACR: All versions prior to v1.10.0010 - Agility Water-Cooled Chiller Model HDWA: All versions prior to v1.00.0010 In addition to the specific recommendations above, Trane continues to recommend the following best practices as an additional protection against this and other controller vulnerabilities: - Restrict physical controller access to trained and trusted personnel. - Use secure remote access solutions, such as Trane Connect Remote Access, when needed. - Ensure user credentials are not shared and follow best practices for appropriate complexity (e.g., strong passwords). - Have a well-documented process and owner to ensure regular software/firmware updates and keep systems up to date.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-38448.

URL Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01 Mitigation Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01 Mitigation Third Party Advisory US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-38448 is associated with the following CWEs:

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-2021-38448 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-38448 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-38448 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    May. 10, 2022

    Action Type Old Value New Value
    CPE Configuration
  • Initial Analysis by [email protected]

    Nov. 29, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01 Mitigation, Third Party Advisory, US Government Resource
    Added CPE Configuration AND OR *cpe:2.3:a:trane:symbio_700:*:*:*:*:*:*:*:* versions up to (excluding) 1.00.0023 OR cpe:2.3:h:trane:odyssey_split_systems:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:trane:symbio_800:*:*:*:*:*:*:*:* versions up to (excluding) 1.30.0008 OR cpe:2.3:h:trane:intellipak_1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:trane:symbio_800:*:*:*:*:*:*:*:* versions up to (excluding) 1.30.0008 OR cpe:2.3:h:trane:intellipak_2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:trane:symbio_800:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.0010 OR cpe:2.3:h:trane:ascend_air-cooled_chiller_acr:-:*:*:*:*:*:*:*
    CPE Configuration
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.6
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} -0.03%

score

0.33517

percentile