CVE-2014-1423

OAuth token disclosure via identity ACL bypass

Published May 7, 2020 · Updated Sep 16, 2024

Credential exposure in Canonical SignOn before 8.57+15.04.20141127.1-0ubuntu1 allows local users to collect other applications' OAuth tokens. SignonDaemonAdaptor applies the wrong identity access check, while the access-control helper authorizes ownerless identities and the absent signon-apparmor-extension leaves malicious click apps unrestricted. A locally installed click app and user interaction are required, and exploitation discloses OAuth tokens without altering accounts or interrupting service.

CVSS severity5.9
Medium
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Canonical SignOn before 8.57+15.04.20141127.1-0ubuntu1 allows local users to collect other applications' OAuth tokens. SignonDaemonAdaptor applies the wrong identity access check, while the access-control helper authorizes ownerless identities and the absent signon-apparmor-extension leaves malicious click apps unrestricted. A locally installed click app and user interaction are required, and exploitation discloses OAuth tokens without altering accounts or interrupting service.

The record

CVE
CVE-2014-1423
Published
May 7, 2020
Updated
Sep 16, 2024
Vendor
Canonical
Product
SignOn
Classifications
CWE-522, T1528
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=Ubuntu 15.04 signon <8.57+15.04.20141127.1-0ubuntu1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Canonical · SignOnversion=Ubuntu 15.04 signon <8.57+15.04.20141127.1-0ubuntu1

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
5.9Canonical Ltd.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1528Steal Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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