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4 vulnerabilities found for BoKS Manager boks-server by Fortra
CVE-2026-79900 (GCVE-0-2026-79900)
Vulnerability from nvd – Published: 2026-10-01 14:11 – Updated: 2026-10-01 14:42
VLAI
EPSS
VEX
Title
Heap overflow in KSL checksum initialization
Summary
boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can supply an oversized, OpenSSL-recognized digest name and write beyond the end of the heap allocation.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:41 UTC
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortra | BoKS Manager boks-server |
Affected:
0 , < 8.1.0.24
(semver)
Affected: 0 , < 9.0.0.7 (semver) |
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CVE-2026-79901 (GCVE-0-2026-79901)
Vulnerability from nvd – Published: 2026-10-01 13:52 – Updated: 2026-10-01 14:43
VLAI
EPSS
VEX
Title
Predictable Active Directory service-account passwords in BoKS Manager
Summary
In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:42 UTC
CWE
- CWE-338 - Use of cryptographically weak Pseudo-Random number generator (PRNG)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortra | BoKS Manager boks-server |
Affected:
0 , < 9.0.0.6
(semver)
|
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CVE-2026-79900 (GCVE-0-2026-79900)
Vulnerability from cvelistv5 – Published: 2026-10-01 14:11 – Updated: 2026-10-01 14:42
VLAI
EPSS
VEX
Title
Heap overflow in KSL checksum initialization
Summary
boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can supply an oversized, OpenSSL-recognized digest name and write beyond the end of the heap allocation.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:41 UTC
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortra | BoKS Manager boks-server |
Affected:
0 , < 8.1.0.24
(semver)
Affected: 0 , < 9.0.0.7 (semver) |
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CVE-2026-79901 (GCVE-0-2026-79901)
Vulnerability from cvelistv5 – Published: 2026-10-01 13:52 – Updated: 2026-10-01 14:43
VLAI
EPSS
VEX
Title
Predictable Active Directory service-account passwords in BoKS Manager
Summary
In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:42 UTC
CWE
- CWE-338 - Use of cryptographically weak Pseudo-Random number generator (PRNG)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortra | BoKS Manager boks-server |
Affected:
0 , < 9.0.0.6
(semver)
|
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"value": "In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline."
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"value": "In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline."
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],
"impacts": [
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"capecId": "CAPEC-49",
"descriptions": [
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"value": "CAPEC-49 Password Brute Forcing"
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
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"descriptions": [
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"description": "CWE-338 Use of cryptographically weak Pseudo-Random number generator (PRNG)",
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}
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"providerMetadata": {
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"orgId": "df4dee71-de3a-4139-9588-11b62fe6c0ff",
"shortName": "Fortra"
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"references": [
{
"url": "https://www.fortra.com/security/advisories/product-security/fi-2026-012"
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"value": "Upgrade the active BoKS Master to boks-server 9.0.0.7 and restart BoKS before generating replacement passwords."
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],
"source": {
"discovery": "UNKNOWN"
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"title": "Predictable Active Directory service-account passwords in BoKS Manager",
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"value": "Installing the update does not secure passwords generated by an affected release. Rotate all affected or uncertain service-account passwords through BoKS keytab management and confirm distribution of the new key version. After the Active Directory domain\u0027s configured maximum service-ticket lifetime plus clock-skew allowance has elapsed, rebuild affected keytabs during a maintenance window so they retain only the current key version. Redistribute and verify the keytabs, restart or reload dependent services as required, and test Kerberos authentication. If compromise is suspected, rotate and rebuild immediately rather than waiting for existing tickets to expire."
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"cveId": "CVE-2026-79901",
"datePublished": "2026-10-01T13:52:27.046Z",
"dateReserved": "2026-08-25T14:50:15.178Z",
"dateUpdated": "2026-10-01T14:43:07.294Z",
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