Account impersonation via SAML signature wrapping
Published Jun 22, 2023 · Updated Dec 4, 2024
XML signature wrapping in TOPdesk 12.10.12 allows remote authenticated users to impersonate any TOPdesk user through a SAML response. The SAML SSO handler validates the original signed response but later consumes an injected, unsigned clone whose username attribute names the victim. A valid Identity Provider account is required; impersonation exposes the victim's requests and files and permits actions in the victim's role.
Summary
What happened
XML signature wrapping in TOPdesk 12.10.12 allows remote authenticated users to impersonate any TOPdesk user through a SAML response. The SAML SSO handler validates the original signed response but later consumes an injected, unsigned clone whose username attribute names the victim. A valid Identity Provider account is required; impersonation exposes the victim's requests and files and permits actions in the victim's role.
The record
- CVE
- CVE-2023-34923
- Published
- Jun 22, 2023
- Updated
- Dec 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-863, T1606.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 22, 2023CVE publishedPublication date reported by the CVE source.
- Dec 4, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- TOPdesk XML Signature Wrapping demonstrationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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