CVE-2019-11808
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-11808
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-11808.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-11808
- Aliases
- Published
- 2019-05-07T07:29:05Z
- Modified
- 2025-09-19T10:20:20.593508Z
- Severity
-
- 3.7 (Low) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Ratpack versions before 1.6.1 generate a session ID using a cryptographically weak PRNG in the JDK's ThreadLocalRandom. This means that if an attacker can determine a small window for the server start time and obtain a session ID value, they can theoretically determine the sequence of session IDs.
- References
Affected packages
Git / github.com/ratpack/ratpack
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ratpack/ratpack
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
Affected versions
0.*
0.5.2
0.6.1
1.*
1.6.0-rc-1
Other
spring-boot-pr-3
v0.*
v0.9.0
v0.9.1
v0.9.10
v0.9.11
v0.9.12
v0.9.13
v0.9.14
v0.9.15
v0.9.16
v0.9.17
v0.9.18
v0.9.19
v0.9.2
v0.9.3
v0.9.4
v0.9.5
v0.9.6
v0.9.7
v0.9.8
v0.9.9
v1.*
v1.0.0
v1.0.0-rc-1
v1.0.0-rc-2
v1.0.0-rc-3
v1.1.0
v1.1.1
v1.2.0
v1.2.0-RC-1
v1.2.0-rc-2
v1.3.0
v1.3.0-rc-1
v1.3.0-rc-2
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.4.0-rc-1
v1.4.0-rc-2
v1.4.0-rc-3
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.5.0
v1.5.0-rc-1
v1.5.0-rc-2
v1.5.0-rc-3
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.0-rc-2
v1.6.0-rc-3
v1.6.0-rc-4
Database specific
{
"vanir_signatures": [
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"71367211667805614474262679484365507025",
"154913202557657715797989884372491816929",
"203145417490335592114016916057217824295",
"77552764402514804693061393479611006934"
]
},
"id": "CVE-2019-11808-078847f3",
"source": "https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d",
"signature_type": "Line",
"signature_version": "v1",
"target": {
"file": "ratpack-session/src/main/java/ratpack/session/SessionModule.java"
},
"deprecated": false
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"223769642921180714213624975815823092972",
"270234634705521122023414332419619368198",
"192011128202987122063634888260665579081",
"117400372187328187914271744312200082874",
"99069651121528590450252327565252769957",
"305049644449210423698307830915945668901",
"196581739354092496730175082181381076825",
"244116176367642181748269931645136646689",
"300381473656706452809181982359708873149"
]
},
"id": "CVE-2019-11808-0fc3d6e1",
"source": "https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d",
"signature_type": "Line",
"signature_version": "v1",
"target": {
"file": "ratpack-session/src/main/java/ratpack/session/internal/DefaultSessionIdGenerator.java"
},
"deprecated": false
},
{
"digest": {
"function_hash": "207315375411098578483848171294891764207",
"length": 174.0
},
"id": "CVE-2019-11808-4ea60d16",
"source": "https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d",
"signature_type": "Function",
"signature_version": "v1",
"target": {
"file": "ratpack-session/src/main/java/ratpack/session/internal/DefaultSessionIdGenerator.java",
"function": "generateSessionId"
},
"deprecated": false
}
]
}