CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.7 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Exim (Mail Server Software). This affects an unknown part. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user s file.
The weakness was shared 06/07/2010 by Dan Rosenberg (Website). The advisory is shared at vcs.exim.org. This vulnerability is uniquely identified as CVE-2010-2023. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 75480 (openSUSE Security Update : exim (openSUSE-SU-2010:0416-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118355 (Fedora Update for Exim (FEDORA-2010-9524)).
Upgrading to version 4.30 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (59043) and Tenable (75480). The entry 53470 is related to this item.
Product
Type
Name
Version
- 4.10
- 4.20
- 4.21
- 4.22
- 4.23
- 4.24
- 4.30
- 4.31
- 4.32
- 4.33
- 4.34
- 4.40
- 4.41
- 4.42
- 4.43
- 4.44
- 4.50
- 4.51
- 4.52
- 4.53
- 4.54
- 4.60
- 4.61
- 4.62
- 4.63
- 4.64
- 4.65
- 4.66
- 4.67
- 4.68
- 4.69
- 4.70
- 4.71
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.7
VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Race conditionCWE: CWE-362
ATT&CK: Unknown
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 75480
Nessus Name: openSUSE Security Update : exim (openSUSE-SU-2010:0416-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 100663
OpenVAS Name: Exim < 4.72 RC2 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Exim 4.30
Timeline
05/24/2010 🔍05/24/2010 🔍
05/24/2010 🔍
06/07/2010 🔍
06/07/2010 🔍
06/08/2010 🔍
06/13/2014 🔍
03/19/2015 🔍
09/14/2021 🔍
Sources
Advisory: USN-1060-1Researcher: Dan Rosenberg
Status: Not defined
Confirmation: 🔍
CVE: CVE-2010-2023 (🔍)
OVAL: 🔍
X-Force: 59043
Vulnerability Center: 25974 - Exim Prior to 4.72 RC2 Local DoS or Privilege Escalation Vulnerability via a Hard Link, Medium
SecurityFocus: 40451 - Exim Sticky Mail Directory Local Privilege Escalation Vulnerability
Secunia: 40019
See also: 🔍
Entry
Created: 03/19/2015 12:22Updated: 09/14/2021 18:31
Changes: 03/19/2015 12:22 (62), 02/27/2017 09:38 (10), 09/14/2021 18:23 (6), 09/14/2021 18:31 (1)
Complete: 🔍
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