UBUNTU-CVE-2020-28374
In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
02 / AFFECTED SOFTWARE
Affected packages
88 explicit affected versions
50 explicit affected versions
6 explicit affected versions
6 explicit affected versions
56 explicit affected versions
19 explicit affected versions
37 explicit affected versions
10 explicit affected versions
65 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
8 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
21 explicit affected versions
27 explicit affected versions
56 explicit affected versions
23 explicit affected versions
20 explicit affected versions
12 explicit affected versions
10 explicit affected versions
35 explicit affected versions
6 explicit affected versions
55 explicit affected versions
34 explicit affected versions
1 explicit affected versions
3 explicit affected versions
1 explicit affected versions
21 explicit affected versions
13 explicit affected versions
15 explicit affected versions
51 explicit affected versions
1 explicit affected versions
23 explicit affected versions
31 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
90 explicit affected versions
21 explicit affected versions
2 explicit affected versions
54 explicit affected versions
15 explicit affected versions
59 explicit affected versions
159 explicit affected versions
1 explicit affected versions
120 explicit affected versions
51 explicit affected versions
13 explicit affected versions
67 explicit affected versions
1 explicit affected versions
15 explicit affected versions
11 explicit affected versions
1 explicit affected versions
11 explicit affected versions
1 explicit affected versions
13 explicit affected versions
77 explicit affected versions
10 explicit affected versions
36 explicit affected versions
44 explicit affected versions
16 explicit affected versions
26 explicit affected versions
6 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
98 explicit affected versions
11 explicit affected versions
82 explicit affected versions
33 explicit affected versions
44 explicit affected versions
5 explicit affected versions
10 explicit affected versions
37 explicit affected versions
1 explicit affected versions
12 explicit affected versions
14 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2896c93811e39d63a4d9b63ccf12a8fbc226e5e4
- https://github.com/open-iscsi/tcmu-runner/pull/644
- https://ubuntu.com/security/CVE-2020-28374
- https://ubuntu.com/security/notices/USN-4694-1
- https://ubuntu.com/security/notices/USN-4709-1
- https://ubuntu.com/security/notices/USN-4711-1
- https://ubuntu.com/security/notices/USN-4713-1
- https://ubuntu.com/security/notices/USN-4713-2
- https://ubuntu.com/security/notices/USN-4753-1
- https://ubuntu.com/security/notices/USN-4901-1
- https://www.cve.org/CVERecord?id=CVE-2020-28374