Cyber Resilience

CVE-2024-20462

Exposed Creds in Cisco Ata 191 Firmware ≤ 12.0.2

Exposed Creds
Published
16 October 2024
Modified
31 October 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0016 5th percentile
Risk Priority 41 floored blend · peak EPSS

Summary

CVE-2024-20462 is a medium-severity Storing Passwords in a Recoverable Format (CWE-257) vulnerability in Cisco Ata 191 Firmware. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Unsecured Credentials (T1552); ranked at the 5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access ControlA06:2025 Insecure Design

EU & UK References

Vulnerability Data

A vulnerability in the web-based management interface of Cisco ATA 190 Series Multiplatform Analog Telephone Adapter firmware could allow an authenticated, local attacker with low privileges to view passwords on an affected device. This vulnerability is due to incorrect sanitization…

more

of HTML content from an affected device. A successful exploit could allow the attacker to view passwords that belong to other users.

CWE(s)
CWE-257CWE-522CWE-922

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
attack.mitre.org →
T1552.006 Group Policy Preferences Credential Access
Adversaries may attempt to find unsecured credentials in Group Policy Preferences (GPP).
attack.mitre.org →
T1021 Remote Services Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
T1114.002 Remote Email Collection Collection
Adversaries may target an Exchange server, Office 365, or Google Workspace to collect sensitive information.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-20458Same product: Cisco Ata 191
CVE-2024-20420Same product: Cisco Ata 191
CVE-2024-20461Same product: Cisco Ata 191
CVE-2024-20460Same product: Cisco Ata 191
CVE-2024-20459Same product: Cisco Ata 191
CVE-2024-20463Same product: Cisco Ata 191
CVE-2024-20421Same product: Cisco Ata 191
CVE-2024-20489Same vendor: Cisco
CVE-2023-20046Same vendor: Cisco
CVE-2024-20282Same vendor: Cisco

Affected Assets

cisco
ata 191 firmware
≤ 12.0.2 · ≤ 11.2.5
cisco
ata 192 firmware
≤ 11.2.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 4 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V11.4.2
  • V11.4.4
  • V11.3.3

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match

Enforces approved authorizations for logical access to stored information, directly stopping unauthorized read/write.

IA-5 Authenticator Management good match

IA-5 requires proper management of authenticators including storage of passwords only in non-recoverable (hashed) form, directly stopping the weakness from existing.

SC-28 Protection of Information at Rest good match

Protection of information at rest requires encryption or equivalent safeguards for stored credentials.

SC-8 Transmission Confidentiality and Integrity good match

Transmission confidentiality and integrity enforcement stops credentials from being sent in plaintext or without protection.

AC-6 Least Privilege good match

Limits privileges so only authorized accesses to sensitive stored data are permitted.

AC-16 Security and Privacy Attributes partial match

Associates security attributes with information to support proper access decisions on storage.

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.DS-01 full match
prevents

Encrypting data-at-rest fully prevents insecure credential storage while only partially satisfying the broader data-protection outcome.

PR.DS-02 full match
prevents

Encrypting data-in-transit fully prevents interception of credentials in motion while only partially satisfying the broader data-protection outcome.

PR.AA-01 mostly match
prevents

Credential management practices directly reduce insecure storage/transmission but do not guarantee encryption or transport protection.

PR.AA-04 mostly match
prevents

Protecting identity assertions covers conveyance of credentials but is narrower than full credential lifecycle protection.

PR.AA-05 mostly match
prevents

Enforces least-privilege permissions and authorization reviews that limit read/write access to stored sensitive data.

PR.AA-03 partial match
prevents

Authentication policies can enforce stronger credential handling yet address only verification, not storage or transit protection.

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.5.17 Authentication information full match
degrades

Directly requires secure handling and protection of authentication information, preventing storage in recoverable formats.

A.8.5 Secure authentication full match
degrades

Mandates secure authentication mechanisms that preclude recoverable password storage.

A.8.24 Use of cryptography mostly match
prevents

Protecting secret and private keys against disclosure and unauthorized use decreases the exposure of credentials that are stored or transmitted in recoverable form.

A.5.10 Acceptable use of information and other associated assets partial match
prevents

Acceptable-use expectations that cover protection of credentials and information assets throughout their lifecycle discourage practices that expose or mishandle authentication material.

A.6.2 Terms and conditions of employment partial match
prevents

Contractual clauses that survive termination help ensure that credentials and other secrets are not retained or misused after employment ends.

A.6.3 Information security awareness, education and training partial match
prevents

Regular reminders about password security and personal accountability make users less likely to store or transmit credentials in cleartext or other unprotected forms.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Windows Server 2016 (2 rules)
  • V-224973 The Active Directory Domain Controllers Organizational Unit (OU) object must have the proper access control permissions. prevents CWE-922
  • V-224974 Domain-created Active Directory Organizational Unit (OU) objects must have proper access control permissions. prevents CWE-922
Windows Server 2019 (1 rule)
  • V-205743 Windows Server 2019 organization created Active Directory Organizational Unit (OU) objects must have proper access control permissions. prevents CWE-922

References