The session.lua library in CGILua 5.2 alpha 1 and 5.2 alpha 2 uses weak session IDs generated based on OS time, which allows remote attackers to hijack arbitrary sessions via a brute force attack
Published Feb 6, 2020
6.1
MEDIUMCVSS 3.1
EPSS 1.63%
Description
The session.lua library in CGILua 5.2 alpha 1 and 5.2 alpha 2 uses weak session IDs generated based on OS time, which allows remote attackers to hijack arbitrary sessions via a brute force attack. NOTE: CVE-2014-10399 and CVE-2014-10400 were SPLIT from this ID.
Affected products
No data.
- ≥ 5.0.0 · ≤ 5.0.1
- ≥ 5.1.0 · ≤ 5.1.4
- 5.2
- 5.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.63% (0.01631) | 75.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.59% (0.01591) | 72.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.57% (0.00573) | 66.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.26% (0.00263) | 66.50th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00280) | 67.49th | v3 (v2023.03.01) |
| May 8, 2023 | 0.28% (0.00280) | 63.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00173) | 52.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://seclists.org/fulldisclosure/2014/Apr/318 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/archive/1/531981/100/0/threaded x_refsource_MISCThird Party AdvisoryVDB Entry
- http://www.syhunt.com/en/index.php?n=Advisories.Cgilua-weaksessionid x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2014/Apr/318 | x_refsource_MISCMailing ListThird Party Advisory | |
| http://www.securityfocus.com/archive/1/531981/100/0/threaded | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| http://www.syhunt.com/en/index.php?n=Advisories.Cgilua-weaksessionid | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.