ZoneMinder up to 1.32.3 zm_user.cpp zmLoadUser Long Username memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability, which was classified as critical, was found in ZoneMinder up to 1.32.3 (Video Surveillance Software). Affected is the function zmLoadUser of the file zm_user.cpp. The manipulation as part of a Long Username leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A classic Stack-based buffer overflow exists in the zmLoadUser() function in zm_user.cpp of the zmu binary in ZoneMinder through 1.32.3, allowing an unauthenticated attacker to execute code via a long username.

The bug was discovered 01/24/2019. The weakness was released 01/28/2019 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2019-6991 since 01/28/2019. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at 130297 and 130295.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

01/24/2019 🔍
01/28/2019 +4 days 🔍
01/28/2019 +0 days 🔍
01/28/2019 +0 days 🔍
01/29/2019 +1 days 🔍
07/03/2023 +1616 days 🔍

Sourcesinfo

Advisory: 2478
Status: Not defined

CVE: CVE-2019-6991 (🔍)
See also: 🔍

Entryinfo

Created: 01/29/2019 10:03
Updated: 07/03/2023 16:04
Changes: 01/29/2019 10:03 (62), 05/06/2020 15:02 (1), 07/03/2023 16:04 (4)
Complete: 🔍

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