CVE-2008-3280Public exploitNetwork attack vector

Provider impersonation via predictable TLS certificate keys

Published May 21, 2021 · Updated Aug 7, 2024

Weak TLS keys in OpenID providers allow remote attackers to impersonate trusted providers and intercept protected authentication traffic. Affected providers use TLS server certificates whose private keys were generated by Debian's predictable random-number generator, sharply reducing the key space. Exploitation requires a weak certificate key and traffic redirection, such as DNS cache poisoning; without effective revocation checks, forged endpoints cannot be reliably rejected.

CVSS severity5.9
Medium
EPSS probability3.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak TLS keys in OpenID providers allow remote attackers to impersonate trusted providers and intercept protected authentication traffic. Affected providers use TLS server certificates whose private keys were generated by Debian's predictable random-number generator, sharply reducing the key space. Exploitation requires a weak certificate key and traffic redirection, such as DNS cache poisoning; without effective revocation checks, forged endpoints cannot be reliably rejected.

The record

CVE
CVE-2008-3280
Published
May 21, 2021
Updated
Aug 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-338, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
5.9NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
T1557Adversary-in-the-Middle

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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