Security Resilience

CVE-2023-28127

Path Traversal in Ivanti Avalanche ≤ 6.3.4.153

High EPSSPath Traversal
Published
09 May 2023
Modified
28 January 2025
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.59 99.1th percentile
Risk Priority 80 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-28127 is a high-severity Path Traversal (CWE-22) vulnerability in Ivanti Avalanche. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 0.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

A path traversal vulnerability tracked as CVE-2023-28127 affects Ivanti Avalanche versions 6.3.x and earlier. The flaw, assigned CWE-22, permits unauthorized access to files outside intended directories and carries a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, and no required credentials or user interaction, resulting in high confidentiality impact with no integrity or availability effects.

Unauthenticated remote attackers can send specially crafted requests to the getLogFile endpoint to traverse directories and retrieve sensitive files, achieving information disclosure without any prior authentication or user assistance.

The referenced Ivanti support article ZDI-CAN-17769 describes the directory traversal behavior in Avalanche but supplies no explicit mitigation steps within the provided source material.

EPSS for the CVE rose from a low baseline to a peak of 0.3114 on 2026-02-03 before receding to the current value of 0.0599, indicating a period of increased exploitation interest after public disclosure.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

A path traversal vulnerability exists in Avalanche version 6.3.x and below that when exploited could result in possible information disclosure.

CWE(s)
CWE-22

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1016.001 Internet Connection Discovery Discovery
Adversaries may check for Internet connectivity on compromised systems.
attack.mitre.org →
T1018 Remote System Discovery Discovery
Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Lateral Movement from the current system.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-25000Same product: Ivanti Avalanche
CVE-2024-24992Same product: Ivanti Avalanche
CVE-2023-32563Same product: Ivanti Avalanche
CVE-2024-27977Same product: Ivanti Avalanche
CVE-2024-24999Same product: Ivanti Avalanche
CVE-2024-24997Same product: Ivanti Avalanche
CVE-2024-13180Same product: Ivanti Avalanche
CVE-2023-41474Same product: Ivanti Avalanche
CVE-2024-23535Same product: Ivanti Avalanche
CVE-2024-24994Same product: Ivanti Avalanche

Affected Assets

ivanti
avalanche
≤ 6.3.4.153

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-10 Information Input Validation
addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
blocks

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
blocks

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References