Scene Viewer: Uncontrolled Search Path Element
CVE-2024-2637 is a high-severity uncontrolled search path element vulnerability in Scene Viewer from B&R Industrial Automation, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, but only if a user takes part, for example by opening a link or file. The record lists version 4.4.0 as the first without the flaw, so updating Scene Viewer to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.17% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Scene Viewer to 4.4.0 or a later version.
- Update Automation Runtime to J4.93 or a later version.
- Update mapp Vision to 5.26.1 or a later version.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
Version data comes from the organisation that assigned the CVE; 6 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H. Scored by CNA (ch.abb.com).
Official description
An Uncontrolled Search Path Element vulnerability in B&R Industrial Automation Scene Viewer, B&R Industrial Automation Automation Runtime, B&R Industrial Automation mapp Vision, B&R Industrial Automation mapp View, B&R Industrial Automation mapp Cockpit, B&R Industrial Automation mapp Safety, B&R Industrial Automation VC4, B&R Industrial Automation APROL, B&R Industrial Automation CAN Driver, B&R Industrial Automation CAN Driver CC770, B&R Industrial Automation CAN Driver SJA1000, B&R Industrial Automation Tou0ch Lock, B&R Industrial Automation B&R Single-Touch Driver, B&R Industrial Automation Serial User Mode Touch Driver, B&R Industrial Automation Windows Settings Changer (LTSC), B&R Industrial Automation Windows Settings Changer (2019 LTSC), B&R Industrial Automation Windows 10 Recovery Solution, B&R Industrial Automation ADI driver universal, B&R Industrial Automation ADI Development Kit, B&R Industrial Automation ADI .NET SDK, B&R Industrial Automation SRAM driver, B&R Industrial Automation HMI Service Center, B&R Industrial Automation HMI Service Center Maintenance, B&R Industrial Automation Windows 10 IoT Enterprise 2019 LTSC, B&R Industrial Automation KCF Editor could allow an authenticated local attacker to execute malicious code by placing specially crafted files in the loading search path..This issue affects Scene Viewer: before 4.4.0; Automation Runtime: before J4.93; mapp Vision: before 5.26.1; mapp View: before 5.24.2; mapp Cockpit: before 5.24.2; mapp Safety: before 5.24.2; VC4: before 4.73.2; APROL: before 4.4-01; CAN Driver: before 1.1.0; CAN Driver CC770: before 3.3.0; CAN Driver SJA1000: before 1.3.0; Tou0ch Lock: before 2.1.0; B&R Single-Touch Driver: before 2.0.0; Serial User Mode Touch Driver: before 1.7.1; Windows Settings Changer (LTSC): before 3.2.0; Windows Settings Changer (2019 LTSC): before 2.2.0; Windows 10 Recovery Solution: before 3.2.0; ADI driver universal: before 3.2.0; ADI Development Kit: before 5.5.0; ADI .NET SDK: before 4.1.0; SRAM driver: before 1.2.0; HMI Service Center: before 3.1.0; HMI Service Center Maintenance: before 2.1.0; Windows 10 IoT Enterprise 2019 LTSC: through 1.1; KCF Editor: before 1.1.0.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Uncontrolled Search Path Element
The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
How developers prevent this class of flaw
- Hard-code the search path to a set of known-safe values (such as system directories), or only allow them to be specified by the administrator in a configuration file. Do not allow these settings to be modified by an external party. Be careful to avoid related weaknesses such as CWE-426 and CWE-428.
- When invoking other programs, specify those programs using fully-qualified pathnames. While this is an effective approach, code that uses fully-qualified pathnames might not be portable to other systems that do not use the same pathnames. The portability can be improved by locating the full-qualified paths in a centralized, easily-modifiable location within the source code, and having the code refer to these paths.
- Remove or restrict all environment settings before invoking other programs. This includes the PATH environment variable, LD_LIBRARY_PATH, and other settings that identify the location of code libraries, and any application-specific search paths.
More Uncontrolled Search Path Element vulnerabilities (CWE-427)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Recent Uncontrolled Search Path Element vulnerabilities
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