Leptonica up to 1.75.3 gplotMakeOutput rootname path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Leptonica up to 1.75.3. It has been rated as critical. Affected by this issue is the function gplotMakeOutput. This manipulation of the argument rootname with the input / as part of Argument causes path traversal. This vulnerability is registered as CVE-2018-7442. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Leptonica up to 1.75.3. It has been declared as critical. Affected by this vulnerability is the function gplotMakeOutput. The manipulation of the argument rootname with the input value / leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability. The summary by CVE is:

An issue was discovered in Leptonica through 1.75.3. The gplotMakeOutput function does not block '/' characters in the gplot rootname argument, potentially leading to path traversal and arbitrary file overwrite.

The bug was discovered 02/15/2018. The weakness was published 02/23/2018 (Website). The advisory is shared at lists.debian.org. This vulnerability is known as CVE-2018-7442 since 02/23/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120407 (Fedora 29 : leptonica / mingw-leptonica (2018-4db33b3753)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 12 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120407). Similar entry is available at VDB-113784. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120407
Nessus Name: Fedora 29 : leptonica / mingw-leptonica (2018-4db33b3753)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54732
OpenVAS Name: Fedora Update for leptonica FEDORA-2018-c6e8b5f529
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

02/15/2018 🔍
02/23/2018 +8 days 🔍
02/23/2018 +0 days 🔍
02/23/2018 +0 days 🔍
02/24/2018 +1 days 🔍
12/30/2018 +309 days 🔍
01/03/2019 +4 days 🔍
02/10/2023 +1499 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-4db33b3753
Status: Not defined

CVE: CVE-2018-7442 (🔍)
GCVE (CVE): GCVE-0-2018-7442
GCVE (VulDB): GCVE-100-113785
See also: 🔍

Entryinfo

Created: 02/24/2018 12:32
Updated: 02/10/2023 08:37
Changes: 02/24/2018 12:32 (68), 01/08/2020 13:40 (7), 02/10/2023 08:37 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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